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HomeComponentsTag

Tag

Names a category or a status with a short static label, quietly, outlined or filled, in the colors of a status where it has one. It is text, never a control.

content_copyView as Markdown
Category
Communication
Tokens
comp.tag
Level
Base

Overview

Web
tanrei-tag
schedule
SwiftUI
TanreiTag
radio_button_unchecked
Jetpack Compose
TanreiTag
radio_button_unchecked
Flutter
TanreiTag
radio_button_unchecked
React Native
Tag
radio_button_unchecked

Generated from docs/status/status.json, specs/tag.spec.json

Three looks, with and without a status

A tag is a word or a short phrase that says what a thing is or what state it is in: an article’s category, a build’s result, a release’s stage, the default among several values. It stands in the layout, inline with the text beside it, and never answers a pointer, a key or focus.

On the web it is <tanrei-tag>. The other platforms have not implemented it yet.

Usage

<tanrei-tag label="Beta"></tanrei-tag>
<tanrei-tag variant="outlined" label="Design"><span slot="icon">sell</span></tanrei-tag>

<!-- The label says the status. -->
<tanrei-tag status="error" label="Failed"></tanrei-tag>

<!-- The label does not say it: status-label is read before it ("Error, 3 builds") and not drawn. -->
<tanrei-tag status="error" status-label="Error" label="3 builds"></tanrei-tag>

<script type="module">
  import '@tanrei/web/components/tag';
</script>
import { Tag } from '@tanrei/react';

<Tag label="Beta" />
<Tag variant="outlined" label="Design"><span slot="icon">sell</span></Tag>
<Tag status="error" statusLabel="Error" label={`${failed} builds`} />

Specs

Each look in each status

Two sizes, a glyph, a dot

sellsell

Anatomy

Anatomy

Drawn over the fixture tonal, as the web package draws it.
Part Description
1 container The shape that holds the label: at least the height of its size, a pill in the default system, filled in the tonal and filled looks and edged in the outlined look. It carries no state: nothing about it answers a pointer, a press or focus.
2 label The word or short phrase the tag shows, on one line.
3 icon · optional A leading glyph of the system's icon set that the product names (a category's mark, a status's mark). Decorative: the label says what the tag means.
4 dot · optional A small filled circle in the leading position, in the look's mark color: the lightest way to show a status beside its word. Drawn where the product asks for it and no glyph is given, and always on an outlined tag that has a status.
5 outline · optional The outlined look's edge: one hairline inside the container, the same in every status.

Measurements

Measurements

Length Token Value (px)
container padding-inline tanrei.comp.tag.container.padding-inline.medium 8
container height tanrei.comp.tag.container.height.medium 24
Drawn over the fixture tonal, as the web package draws it.

Properties

Property Type Default Description
label string "" The tag's text: a word or a short phrase ("Beta", "Out of stock"). It is what the tag draws and what assistive technology reads.
variant tonal | outlined | filled "tonal" How much the tag weighs. tonal: a quiet fill, the default. outlined: no fill and one hairline, for many tags close together. filled: a full fill, for the chosen one among its neighbours (the default among values, the required among fields) and for the one status that must not be missed.
status default | info | warning | error | success "default" What the tag reports, in the names the snackbar uses. default: a category or a neutral state, in the look's own colors. info, warning, error and success draw the look in that status's color roles. It changes colors only; the words are the label's and statusLabel's.
statusLabel string "" The status in words, in the product's language ("Error"), read by assistive technology before the label and not drawn. For a tag whose label does not itself say the status (an error tag that reads "3 builds"); a label that says it ("Failed") needs none. Ignored while status is default.
size small | medium "medium" Small (20 high, 12 text) follows a field's label, a table cell or a line of body text without making the line taller; medium (24 high, 14 text) stands beside a heading or by itself.
dot boolean false Draws the dot before the label, in the look's mark color. A glyph in the icon slot takes its place. An outlined tag with a status draws the dot whatever this says, because nothing else in that look shows the status.
disabled boolean false Draws the tag as part of something disabled — the label of a disabled field, a disabled row of a list, a disabled item of a menu — in its look's disabled colors, so that it fades with what it stands in. It changes nothing else: a tag takes no input and no focus, and what assistive technology hears of the disabled state it hears from the element the tag stands in. The component that holds the tag sets it (a Field does, for its requirement tag); a product sets it on a tag it places in a disabled element of its own.

Slots

Slot Description
icon The leading glyph: a glyph of the system's icon set, drawn through the platform's icon helper at the tag's glyph size.

States

Behavior

Requirements in EARS form. Every platform implementation is tested against these ids.

ID Requirement
TAG-1 THE tag SHALL draw a container at least the height of its size (comp.tag.container.height.medium for medium, and so on) with corners comp.tag.container.shape, never larger than half the container's height (a pill where the value is sys.shape.corner.full, at any height the tag grows to) and eased by sys.shape.corner-smoothing, and lay out in one row its glyph or its dot, where it has one, and its label, comp.tag.container.gap apart; the start SHALL be padded by comp.tag.container.padding-inline-with-icon.medium where it holds the glyph or the dot and by comp.tag.container.padding-inline.medium where the label meets it, the end by comp.tag.container.padding-inline.medium, and the row's tallest item (the label's line or the glyph's box) SHALL be padded at the top and bottom by at least comp.tag.container.padding-block.medium (and so on for each size). THE tag SHALL be as wide as its content and its paddings, never wider than its layout gives it, and SHALL draw no elevation.
TAG-2 WHILE status is default THE tag SHALL fill its container with the container color of its variant and draw its label, and its glyph or dot, in that variant's label and icon colors: comp.tag.tonal.container.color, comp.tag.tonal.label.color and comp.tag.tonal.icon.color for tonal, and outlined's and filled's tokens of the same names (comp.tag.outlined.container.color, comp.tag.filled.container.color, and so on).
TAG-3 WHILE status is info, warning, error or success THE tag SHALL draw its container, its label and its glyph or dot from the parts of its variant prefixed with the status: for a tonal info tag comp.tag.tonal.info.container.color, comp.tag.tonal.info.label.color and comp.tag.tonal.info.icon.color; for outlined and filled, and for warning, error and success, their own tokens of the same names (comp.tag.outlined.error.icon.color, comp.tag.filled.success.container.color, and so on). A status SHALL change these colors only: the tag's size, shape, layout and edge stay those of its variant and size, and the tag SHALL NOT draw a glyph the product did not give.
TAG-4 WHILE variant is outlined THE tag SHALL draw an edge comp.tag.outline.width wide in comp.tag.outline.color inside its container's size, following its corners, in every status, without changing the tag's size or the place of its content; WHILE variant is tonal or filled it SHALL draw no edge. A status SHALL NOT color the edge: it is the system's one hairline.
TAG-5 THE tag SHALL set its label on one line in the text style of its size (comp.tag.label.typescale.medium for medium, and so on) and the label color of its look (TAG-2, TAG-3), SHALL NOT wrap it, and SHALL cut it with an ellipsis only when the layout gives the tag less width than the label needs, keeping its paddings and its glyph or dot whole; the full label SHALL remain what assistive technology reads.
TAG-6 WHERE the icon slot holds a glyph THE tag SHALL draw it before the label in a box of comp.tag.icon.size, centred on the label's line, in the icon color of its look (TAG-2, TAG-3), with sys.icon.family.unselected and sys.icon.fill.unselected, sys.icon.weight and an optical size clamped between sys.icon.optical-size.min and sys.icon.optical-size.max, SHALL keep it from assistive technology, and SHALL draw no mark of its own in its place.
TAG-7 WHILE dot is true and the icon slot is empty THE tag SHALL draw before the label a filled circle of diameter comp.tag.dot.size in the icon color of its look (TAG-2, TAG-3), centred on the label's line, a circle whatever corners the container has, and SHALL keep it from assistive technology; WHERE the icon slot holds a glyph THE tag SHALL draw the glyph and no dot.
TAG-8 WHILE variant is outlined and status is info, warning, error or success and the icon slot is empty THE tag SHALL draw the dot of TAG-7 whether dot is true or false, because an outlined tag keeps the surface's label color and the one hairline in every status, so its mark is the only place the status shows.
TAG-9 THE tag SHALL NOT take pointer, touch or keyboard input, SHALL NOT take focus or be a stop in the focus order, and SHALL NOT change anything it draws under a pointer, a press or focus: it has no hovered, focused, pressed or selected state and no disabled state of its own — disabled draws it as part of something disabled and changes nothing it does (TAG-21) — draws no state layer, no ripple and no focus indicator, and emits no event.
TAG-10 WHERE the tag is placed inside an element that takes input (a link, a button, a list item, a table row, a card that is pressed as a whole) THE tag SHALL let input over it reach that element, SHALL stay as it is drawn while that element is hovered, focused or pressed (the state is drawn by that element, on its own container), and SHALL add its text (TAG-11) to that element's content in reading order; it SHALL NOT become a second target inside it.
TAG-11 THE tag SHALL expose its label as plain text, read where the tag sits, with no role, name or state of its own; WHILE status is not default and statusLabel is not empty THE tag SHALL expose statusLabel before the label as part of that text, set apart so that the two are read as two phrases ("Error, 3 builds"), and SHALL NOT draw it; WHILE status is default THE tag SHALL ignore statusLabel. THE tag SHALL NOT expose its variant, its size or its status in any other way: a status is given in words or not at all.
TAG-12 WHEN label, status or statusLabel changes THE tag SHALL draw and expose the new value at once, without a motion, and SHALL NOT announce the change by itself.
TAG-13 THE tag SHALL lay itself out inline with the text or the row it is placed in, as one unbreakable box, with the baseline of its label on the baseline of the text beside it; WHILE the text size is enlarged THE tag SHALL grow its container with its label, keeping the height of its size as a minimum, its paddings, and its glyph box and its dot at comp.tag.icon.size and comp.tag.dot.size.
TAG-14 WHERE the platform draws with a person's own forced colors (the web's forced-colors mode, and a platform's equivalent where it has one) THE tag SHALL draw an edge comp.tag.outline.width wide in the platform's text color inside its container in every variant, and its label, glyph and dot in that text color, so that a look whose fill the mode removes is still a bounded label; the status SHALL then rest on the label's words and statusLabel alone.
TAG-15 WHERE the layout direction is right-to-left THE tag SHALL mirror the order of its content and apply its paddings by logical start and end, so that the glyph or the dot sits at the right of the label.
TAG-16 THE tag SHALL take its layout direction from where it is used — the direction of the nearest ancestor that sets one, and the platform's own where none does — and SHALL have no direction setting of its own; WHEN that direction changes while the tag is shown THE tag SHALL draw itself for the new direction at once, without a motion of its own, keeping what it shows.
TAG-17 WHERE the layout direction is right-to-left THE tag SHALL draw the glyph of its icon slot mirrored left to right exactly when the system's icon set marks that glyph's name as mirrored or the product forces mirroring for that use, and unmirrored when the product forbids it: the icon helper mirrors the glyph inside its own box, about the box's vertical centre line, changing neither its place, size, color and fill nor the order TAG-15 gives. THE tag SHALL NOT mirror a glyph itself, and SHALL NOT mirror content the product gives as an image or a view of its own rather than by a glyph's name. The dot is never mirrored.
TAG-18 THE tag SHALL lay out its label as text of its own direction, isolated from the text around it: it takes the base direction of its first strong character, or the layout direction where it has none, so that a left-to-right word, a number with its sign or unit, a version and a date keep their own order in a right-to-left layout and reorder nothing beside them; THE tag SHALL still place the label by the layout direction, not by the text's own, and SHALL cut a label that does not fit (TAG-5) at the end of its own direction, so that a left-to-right label in a right-to-left layout loses its right end and never its beginning.
TAG-19 WHEN variant or size names a value that the active design system does not have, or status names a value this spec does not have, THE tag SHALL render with the default value (the default variant's or size's tokens, status default), and in debug builds report the unknown value.
TAG-20 IF label is empty THE tag SHALL draw nothing, take no space and expose nothing, and in debug builds report that a tag has no text: a glyph or a dot alone is not a tag. IF statusLabel is not empty while status is default THE tag SHALL ignore it and in debug builds report it.
TAG-21 WHILE disabled is true — the tag stands inside something disabled, and the component that holds it, or the product, says so — THE tag SHALL draw its fill, its label, its glyph and its dot from its look's disabled tokens (comp.tag.<variant>.disabled.container.color, comp.tag.<variant>.disabled.label.color and comp.tag.<variant>.disabled.icon.color, and their parts of each status), whatever its status, so that it fades with what it stands in and does not read as the one live part of a disabled whole; an outlined tag SHALL keep its edge and draw no fill. disabled SHALL change nothing else: the tag SHALL keep its size, its label and its place, take no input and no focus (TAG-9), and keep its text readable by assistive technology, which hears the disabled state from the element the tag stands in, never from the tag. WHERE the platform draws with a person's own forced colors THE tag SHALL draw its edge, its label, its glyph and its dot in the platform's color for disabled text (GrayText on the web) in place of its text color (TAG-14).

Platform name mapping

Parity does not mean identical APIs. Each platform uses its own idiom for the same contract.

Spec Web SwiftUI Jetpack Compose Flutter React Native
Component tanrei-tag TanreiTag TanreiTag TanreiTag Tag
label · Property label title label label label
variant · Property variant variant variant variant variant
status · Property status status status status status
statusLabel · Property statusLabel statusLabel statusDescription statusSemanticLabel statusAccessibilityLabel
size · Property size size size size size
dot · Property dot showsDot showDot showDot dot
disabled · Property disabled isDisabled enabled enabled disabled
Notes <tanrei-tag> with the label as the label attribute and the glyph in the icon slot. The host is display: inline-flex with vertical-align: baseline and no role, no tabindex and no listeners; pointer-events stay as they are, so a press over a tag inside a link or a button reaches that element (TAG-10). statusLabel is reflected as the status-label attribute and drawn as visually hidden text before the label in the shadow root, followed by a comma and a space (TAG-11); the glyph and the dot are aria-hidden. The label is one dir="auto" run with text-overflow: ellipsis (TAG-18). Under forced-colors: active the container takes a CanvasText border of the outline width (TAG-14). disabled is a reflected boolean attribute that draws the look's disabled tokens and nothing else: no aria-disabled, no inert, no listener (TAG-21); under forced-colors: active the edge and the text are GrayText. TanreiTag(_ title: String, variant:, status:, statusLabel:, size:, showsDot:, icon:), the glyph given by name through icon:. Not a Button and not focusable; allowsHitTesting(false) so a press reaches a row or a link that holds it. The view is one accessibility element whose label is statusLabel and the title joined by a comma, with the static text trait. isDisabled: (a parameter, not .disabled(_:), which would say the tag is a control): it draws the look's disabled tokens and changes nothing else (TAG-21). TanreiTag(label, variant, status, statusDescription, size, showDot, icon), the glyph given by name through icon. No clickable and no focusable modifier. The label's text semantics are replaced by statusDescription and the label joined by a comma where a status label is given; the glyph and the dot are cleared from semantics. enabled is the inverse flag: it draws the look's disabled tokens and changes nothing else (TAG-21). TanreiTag(label: …, variant:, status:, statusSemanticLabel:, size:, showDot:, icon:), the glyph given by name through icon. Wrapped in IgnorePointer, with no Focus. One Semantics(label:) over the drawn parts, which are excluded. enabled is the inverse flag: it draws the look's disabled tokens and changes nothing else (TAG-21). <Tag label="Beta" />; the glyph is the icon prop (a glyph name). pointerEvents="none" and not focusable. One accessible element with accessibilityRole="text" whose accessibilityLabel is the status label and the label joined by a comma. Follows the app's direction where an ancestor's is not known. disabled: it draws the look's disabled tokens and changes nothing else (TAG-21).

Tokens

Token Aliases Resolved (light)
--tanrei-comp-tag-container-gap sys.space.space50 4px
--tanrei-comp-tag-container-height-medium — 24px
--tanrei-comp-tag-container-height-small — 20px
--tanrei-comp-tag-container-padding-block-medium — 2px
--tanrei-comp-tag-container-padding-block-small — 2px
--tanrei-comp-tag-container-padding-inline-with-icon-medium sys.space.space75 6px
--tanrei-comp-tag-container-padding-inline-with-icon-small sys.space.space50 4px
--tanrei-comp-tag-container-padding-inline-medium sys.space.space100 8px
--tanrei-comp-tag-container-padding-inline-small sys.space.space75 6px
--tanrei-comp-tag-container-shape sys.shape.corner.full 9999px
--tanrei-comp-tag-dot-size sys.space.space100 8px
--tanrei-comp-tag-filled-container-color sys.color.primary #1b1b1b
--tanrei-comp-tag-filled-disabled-container-color — #1b1b1b · 12%
--tanrei-comp-tag-filled-disabled-error-container-color — #1b1b1b · 12%
--tanrei-comp-tag-filled-disabled-error-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-error-label-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-info-container-color — #1b1b1b · 12%
--tanrei-comp-tag-filled-disabled-info-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-info-label-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-label-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-success-container-color — #1b1b1b · 12%
--tanrei-comp-tag-filled-disabled-success-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-success-label-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-warning-container-color — #1b1b1b · 12%
--tanrei-comp-tag-filled-disabled-warning-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-disabled-warning-label-color — #1b1b1b · 38%
--tanrei-comp-tag-filled-error-container-color sys.color.error #cd262f
--tanrei-comp-tag-filled-error-icon-color comp.tag.filled.error.label.color #ffffff
--tanrei-comp-tag-filled-error-label-color sys.color.on-error #ffffff
--tanrei-comp-tag-filled-icon-color comp.tag.filled.label.color #ffffff
--tanrei-comp-tag-filled-info-container-color sys.color.info #3066cb
--tanrei-comp-tag-filled-info-icon-color comp.tag.filled.info.label.color #ffffff
--tanrei-comp-tag-filled-info-label-color sys.color.on-info #ffffff
--tanrei-comp-tag-filled-label-color sys.color.on-primary #ffffff
--tanrei-comp-tag-filled-success-container-color sys.color.success #077b32
--tanrei-comp-tag-filled-success-icon-color comp.tag.filled.success.label.color #ffffff
--tanrei-comp-tag-filled-success-label-color sys.color.on-success #ffffff
--tanrei-comp-tag-filled-warning-container-color sys.color.warning #9b5c00
--tanrei-comp-tag-filled-warning-icon-color comp.tag.filled.warning.label.color #ffffff
--tanrei-comp-tag-filled-warning-label-color sys.color.on-warning #ffffff
--tanrei-comp-tag-icon-size sys.icon.extra-small 16px
--tanrei-comp-tag-outline-color sys.color.outline-variant #000000 · 8%
--tanrei-comp-tag-outline-width sys.border.hairline 1px
--tanrei-comp-tag-outlined-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-error-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-error-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-error-label-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-info-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-info-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-info-label-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-label-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-success-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-success-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-success-label-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-warning-container-color — #000000 · 0%
--tanrei-comp-tag-outlined-disabled-warning-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-disabled-warning-label-color — #1b1b1b · 38%
--tanrei-comp-tag-outlined-error-container-color comp.tag.outlined.container.color #000000 · 0%
--tanrei-comp-tag-outlined-error-icon-color sys.color.error #cd262f
--tanrei-comp-tag-outlined-error-label-color comp.tag.outlined.label.color #1b1b1b
--tanrei-comp-tag-outlined-icon-color sys.color.on-surface-variant #4b4b4b
--tanrei-comp-tag-outlined-info-container-color comp.tag.outlined.container.color #000000 · 0%
--tanrei-comp-tag-outlined-info-icon-color sys.color.info #3066cb
--tanrei-comp-tag-outlined-info-label-color comp.tag.outlined.label.color #1b1b1b
--tanrei-comp-tag-outlined-label-color sys.color.on-surface #1b1b1b
--tanrei-comp-tag-outlined-success-container-color comp.tag.outlined.container.color #000000 · 0%
--tanrei-comp-tag-outlined-success-icon-color sys.color.success #077b32
--tanrei-comp-tag-outlined-success-label-color comp.tag.outlined.label.color #1b1b1b
--tanrei-comp-tag-outlined-warning-container-color comp.tag.outlined.container.color #000000 · 0%
--tanrei-comp-tag-outlined-warning-icon-color sys.color.warning #9b5c00
--tanrei-comp-tag-outlined-warning-label-color comp.tag.outlined.label.color #1b1b1b
--tanrei-comp-tag-tonal-container-color sys.color.secondary-container #eeeeee
--tanrei-comp-tag-tonal-disabled-container-color — #1b1b1b · 12%
--tanrei-comp-tag-tonal-disabled-error-container-color — #1b1b1b · 12%
--tanrei-comp-tag-tonal-disabled-error-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-error-label-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-info-container-color — #1b1b1b · 12%
--tanrei-comp-tag-tonal-disabled-info-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-info-label-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-label-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-success-container-color — #1b1b1b · 12%
--tanrei-comp-tag-tonal-disabled-success-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-success-label-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-warning-container-color — #1b1b1b · 12%
--tanrei-comp-tag-tonal-disabled-warning-icon-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-disabled-warning-label-color — #1b1b1b · 38%
--tanrei-comp-tag-tonal-error-container-color sys.color.error-container #ffedeb
--tanrei-comp-tag-tonal-error-icon-color sys.color.error #cd262f
--tanrei-comp-tag-tonal-error-label-color sys.color.on-error-container #3a211f
--tanrei-comp-tag-tonal-icon-color comp.tag.tonal.label.color #262626
--tanrei-comp-tag-tonal-info-container-color sys.color.info-container #edf0ff
--tanrei-comp-tag-tonal-info-icon-color sys.color.info #3066cb
--tanrei-comp-tag-tonal-info-label-color sys.color.on-info-container #212839
--tanrei-comp-tag-tonal-label-color sys.color.on-secondary-container #262626
--tanrei-comp-tag-tonal-success-container-color sys.color.success-container #e2f6df
--tanrei-comp-tag-tonal-success-icon-color sys.color.success #077b32
--tanrei-comp-tag-tonal-success-label-color sys.color.on-success-container #1b2c1c
--tanrei-comp-tag-tonal-warning-container-color sys.color.warning-container #ffeee0
--tanrei-comp-tag-tonal-warning-icon-color sys.color.warning #9b5c00
--tanrei-comp-tag-tonal-warning-label-color sys.color.on-warning-container #362410
--tanrei-comp-tag-label-typescale-medium sys.typescale.label 500 14px/1.4286
--tanrei-comp-tag-label-typescale-small sys.typescale.label-small 500 12px/1.3333

Fixtures

Canonical renderings. Every platform snapshots each fixture under the same id so the results can be compared.

Generated from specs/tag.spec.json, tokens/comp/tag.tokens.json, design/tokens/

Guidelines

Badge, chip or tag

The three are told apart once, by what they do:

Kind What it is Where it stands Takes input
Badge A dot or a count attached to another element. On its anchor’s corner, outside the layout. No. Input reaches the anchor.
Chip A control. In the layout. Yes: it is pressed, switched or removed, and has focus and states.
Tag A static label. In the layout, inline. Never.
  1. If it is pressed, selected or removed, it is a chip. If it leads somewhere, it is a link.
  2. If it is a number or a dot on top of something else, it is a badge.
  3. If it is a word that only says what a thing is or what state it is in, it is a tag.

A tag never becomes a control by gaining a handler. Inside a link, a button, a list item or a row that is pressed as a whole, it stays text of that element: input over it reaches the element, and the element draws its own hover, focus and press.

Choosing a look

variant Draws Use for
tonal (default) A quiet fill. Most tags.
outlined No fill and one hairline. Many tags close together: a table column, a list of categories.
filled A full fill. The chosen one among its neighbours: the default among values, the required among fields. Also the one status that must not be missed.

Statuses

status is default, info, warning, error or success. It changes colors only. An outlined tag keeps the surface’s text color and its hairline in every status, so it always draws a dot (or your glyph) in the status’s color: that mark is the only place the status shows.

The tag draws no status glyph by itself. Name one where it helps, as this site does for the six statuses of its own status tables:

The six statuses of this site

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Sizes

size Height Text Use for
small 20 12 Beside a field’s label, in a table cell, in a line of body text. It does not make the line taller.
medium (default) 24 14 Beside a heading, or by itself.

The required and optional tags of a field and a field group are this component at its small size: filled for required, tonal for optional. They read the tag’s tokens and have none of their own, so a design system that restyles its small tags restyles them too.

Inside something disabled

A tag has no states of its own, but it can stand inside something that is disabled: the label of a disabled field, a disabled row of a list, a disabled item of a menu. disabled draws it in its look’s disabled colors (comp.tag.<variant>.disabled.*), whatever its status, so that it fades with what holds it and does not read as the one live part of it. It changes nothing else: the tag keeps its size and its words, and takes no input and no focus. A field and a field group set it on their requirement tag while they are disabled; set it yourself on a tag you put in a disabled element of your own.

Tags at rest and inside something disabled

  • Say the status in words. “Failed” needs nothing more; a tag that reads “3 builds” in the error colors needs statusLabel.
  • Give a tag room for its label. A label that does not fit is cut with an ellipsis, and the tag has no hover or focus to show the rest.
  • Put a set of tags in a list (<ul> and <li> on the web) and name the list, where they are one set, such as an article’s categories.

Don’t

  • Don’t make a tag pressable. A label that is pressed, switched or removed is a chip; one that leads somewhere is a link.
  • Don’t use a tag with no label. A dot or a glyph alone is not a tag, and it draws nothing.
  • Don’t rely on the color to carry the status. In forced colors every tag looks alike: an edge and a label in the text color.
  • Don’t use a tag for a count on an icon. That is a badge.

Accessibility

Role
none
Labeling
The tag has no role and no name of its own: it is text, read where it sits. What is read is label, preceded by statusLabel where the tag has a status and the product gave one ("Error, 3 builds"). The glyph and the dot are decorative and hidden. Inside a link, a button, a list item or a table cell the tag's text is part of that element's content.
Minimum target
The hit area meets the minimum target size even when the visual size is smaller. minimum 32px · pointer 44px · spacing 8px · touch 48px

Keyboard

Keys Action

Notes

  • Not interactive: the tag takes no input and no focus (TAG-9), so there is no target to size. minimumTarget holds trivially. A label that must be pressed, selected or removed is a chip; one that leads somewhere is a link.
  • A status never rests on color alone (WCAG 1.4.1): the label says it ("Failed", "Stable"), or statusLabel adds it in words. The component cannot tell whether a label says its status, so this is the product's to check; the docs page says so with examples.
  • Several tags in a row are the product's to group: where they are a set (an article's categories), the product lays them out in its platform's list semantics (ul and li on the web) and names the list. The tag does not group itself and has no list role.
  • A tag does not announce a change of its text or status (TAG-12). Where a change must be announced (a build that finishes while the person watches), the product puts the tag in a live region or reports the change with a snackbar.
  • A label cut by TAG-5 is still read in full by assistive technology, but a person who sees the ellipsis has no way to read the rest from the tag itself: it takes no hover and no focus. Give a tag room for its label, or let the element that holds it (a table cell, a list item) show the full text.
  • Contrast in the default system: every label is a role drawn on its paired role (on-secondary-container on secondary-container, on-error-container on error-container, on-primary on primary, on-error on error, on-surface on a surface), each held to 4.5:1 by the token invariants. The status color used for a glyph or a dot keeps 3:1 against its status container and against every surface (it is held to 4.5:1 as text on surfaces). The outlined look's edge is decorative.
  • Forced colors (TAG-14): a filled or tonal tag loses its fill, so every look gains an edge in the text color. Statuses then look alike, which is why the status must be in words.

Generated from specs/tag.spec.json, tokens/sys/measure.tokens.json

What the component handles

  • It has no role and no name: its label is read where the tag sits, as text. Inside a link, a button or a table cell it is part of that element’s content.
  • statusLabel is read before the label as a second phrase (“Error, 3 builds”) and is never drawn. It is ignored while status is default.
  • The glyph and the dot are hidden from assistive technology.
  • It takes no input and no focus, so it adds no stop to the focus order and no target to a row.
  • A label that is cut is still read in full.
  • In forced colors every look gains an edge in the text color, and the label, the glyph and the dot take that color; a disabled tag takes the color for disabled text.
  • disabled exposes nothing: the element the tag stands in says that it is disabled.
  • In a right-to-left layout the glyph or the dot moves to the right of the label, a glyph the icon set marks is mirrored, and a left-to-right label keeps its own order and is cut at its own end.
  • An unknown variant, size or status, an empty label and a statusLabel without a status are reported in debug builds.

What you need to do

  • Check that each tag’s words say its status. The component cannot tell whether “3 builds” is good or bad news.
  • Write statusLabel in the language of the page.
  • Set disabled only on a tag that stands inside something disabled, and make sure that element says so (a disabled control, or aria-disabled): the faded tag relies on it.
  • If a change must be announced as it happens (a build that finishes while the person watches), put the tag in a live region or report the change with a snackbar. The tag does not announce.