Chart
A picture of numbers: comparison, trend, share or spread.
In Dense data
See it live
Start Storybook to see it live:
npm run storybookWhen to use it
In Dense data: Totals over time on dashboards.
- Use it when: The story is a relationship in a set of numbers, not a single number.
- Not when: A table is clearer, the set is too small, or the chart is decoration.
Instead:
- Table: The numbers as rows; often needed beside the chart.
How Dense data uses it
A number in a table
Use type.data
Not type.body
Mono digits line up in columns, so values compare at a glance.
Words
- Lead with the object, then the state: "Alert 2041 contained."
- Use numbers, not words for numbers.
- One verb per button. No "please", no exclamation marks.
- Use: Investigate, Filter, Assign, Escalated, Resolved. Avoid: Oops, Awesome, Please, Simply.
The labels components use, from the voice tokens:
content.action.commit: Savecontent.action.cancel: Cancelcontent.action.destroy: Deletecontent.action.retry: Retrycontent.action.empty-action: Change filters
See Voice and tone for the whole voice.
Accessibility and keyboard
Test before you ship:
- The same numbers are available as a table or text; color is not the only key. undefined
Use it in code
npx open-ds add chart
The component reads only component keys and semantic tokens, so it follows the brand and mode on <html>.
Tokens it reads
Chart reads 18 tokens of its own, each an alias of a semantic token. Each row is one part: its own token, the semantic it aliases, and the value it ends at. Change a semantic and every component that reads it follows; override one of Chart's tokens to change Chart alone.
Changes with theme
Dense data decides what changes when you switch theme. Here a switch changes colors only, so the marked rows differ between light and dark; everything else holds steady.
| Part | Its token and the semantic it aliases | Value |
|---|---|---|
| Chart | ||
| Text size | component.chart.font-sizetype.caption.font-sizevar(--chart-font-size) | font.size.12:0.75rem |
| Icon Changes with theme | component.chart.iconcolor.text.mutedvar(--chart-icon) | Lightslate.light.600:#535D6DDarkslate.dark.400:#969FAD |
| Icon 2 Changes with theme | component.chart.icon-2color.border.defaultvar(--chart-icon-2) | Lightslate.light.200:#DDE2EADarkslate.dark.100:#262D38 |
| Icon 3 Changes with theme | component.chart.icon-3color.surface.sunkenvar(--chart-icon-3) | Lightslate.light.100:#EEF1F5Darkslate.dark.100:#262D38 |
| Weight | component.chart.font-weighttype.label.font-weightvar(--chart-font-weight) | font.weight.500:500 |
| Gap | component.chart.gapcomponent-spacing-map.x2var(--chart-gap) | space.8:0.5rem |
| Corner | component.chart.radiusradius.containervar(--chart-radius) | radius.4:0.25rem |
| Border Changes with theme | component.chart.bordercolor.border.defaultvar(--chart-border) | Lightslate.light.200:#DDE2EADarkslate.dark.100:#262D38 |
| Fill Changes with theme | component.chart.backgroundcolor.surface.canvasvar(--chart-background) | Lightslate.light.50:#F7F8FADarkslate.dark.0:#0D1117 |
| Padding, left and right | component.chart.padding-xcomponent-spacing-map.x3var(--chart-padding-x) | space.12:0.75rem |
| Padding, top and bottom | component.chart.padding-ycomponent-spacing-map.x2var(--chart-padding-y) | space.8:0.5rem |
| Shadow Changes with theme | component.chart.shadowelevation.overlayvar(--chart-shadow) | Lightshadow.overlayDarkshadow.overlay-dark |
| Gap 2 | component.chart.gap-2space.gap.defaultvar(--chart-gap-2) | space.8:0.5rem |
| Text Changes with theme | component.chart.labelcolor.text.mutedvar(--chart-label) | Lightslate.light.600:#535D6DDarkslate.dark.400:#969FAD |
| Label 2 Changes with theme | component.chart.label-2color.text.primaryvar(--chart-label-2) | Lightslate.light.900:#161B23Darkslate.dark.900:#F7F8FA |
| Gap 3 | component.chart.gap-3space.gap.groupvar(--chart-gap-3) | space.16:1rem |
| Padding, bottom | component.chart.padding-bottomcomponent-spacing-map.x3var(--chart-padding-bottom) | space.12:0.75rem |
| Padding, top | component.chart.padding-topcomponent-spacing-map.x3var(--chart-padding-top) | space.12:0.75rem |
| From the system | ||
| Edge Changes with theme | color.border.default straight from the system, through --border | Lightslate.light.200 · #DDE2EADarkslate.dark.100 · #262D38 |