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Charts

Free

Gradient Area Chart

Q: How is the fade made?

With the definition's gradients option: each entry has an id, a direction (x1, y1, x2, y2) and stops, each with an offset, a color and an opacity. A mark uses one by setting its fill to url(# ).

Q: How do I fade all the way to transparent?

Set the lower stop's opacity to 0. The areaY also has fillOpacity: 0.4, which multiplies with both stops; remove it to use their full range.

Q: Do two gradient charts on one page clash?

No. Each adapter gives its chart an id prefix and rewrites url(#…) fills to the scoped gradient ids, so the same ids can appear in several charts on a page.

Q: Can the gradient run left to right?

Yes. Set x1: 0, y1: 0, x2: 1, y2: 0 on the gradient. Coordinates run from 0 to 1 across each band. A sideways fade reads as a change over time, though, so use it with care.

Q: Does the gradient follow dark mode?

Yes. The stops use var(--color-desktop) and var(--color-mobile), which come from --chart-1 and --chart-2. When the theme switches, the gradients switch with it.

Two stacked areas filled with vertical gradients that fade toward the baseline, keeping the edges strong and the plot light. For Svelte.

PreviewCode

About

Pick it for a dashboard's headline chart, where a flat tint feels heavy but the series should still read as shapes. It's the stacked area with a different paint: the data and the reading are the same. At small sizes or over dense grid lines, a flat fill stays clearer.

Each band fades from strong near its top to faint near the bottom, in its own color, under a solid edge. Mobile stacks under desktop, and the tooltip lists both with dots.

Installation

Free with an account. It carries your token, so the CLI installs everything in one go.

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Usage

<script lang="ts">
import ChartAreaGradient from "@/components/charts/chart-area-gradient.svelte";
</script>

<ChartAreaGradient />

Customize

The definition's gradients holds one vertical linear gradient per series, fill-desktop and fill-mobile, from 0.8 opacity at 5% to 0.1 at 95%.
areaY's fill returns url(#fill-<series>) for each band; the edge is a decorative lineY in the flat series color, so it stays solid.
The stop colors are var(--color-desktop) and var(--color-mobile), so the gradients follow chartConfig and the theme.
Each row also carries fill: var(--color-<series>), which the tooltip's dot reads, so the dot shows the flat color rather than the gradient.
Gradient ids are scoped per chart by the adapter, so short ids like fill-desktop are safe to reuse.

FAQ

How is the fade made?

With the definition's gradients option: each entry has an id, a direction (x1, y1, x2, y2) and stops, each with an offset, a color and an opacity. A mark uses one by setting its fill to url(#<id>).

How do I fade all the way to transparent?

Set the lower stop's opacity to 0. The areaY also has fillOpacity: 0.4, which multiplies with both stops; remove it to use their full range.

Do two gradient charts on one page clash?

No. Each adapter gives its chart an id prefix and rewrites url(#…) fills to the scoped gradient ids, so the same ids can appear in several charts on a page.

Can the gradient run left to right?

Yes. Set x1: 0, y1: 0, x2: 1, y2: 0 on the gradient. Coordinates run from 0 to 1 across each band. A sideways fade reads as a change over time, though, so use it with care.

Does the gradient follow dark mode?

Yes. The stops use var(--color-desktop) and var(--color-mobile), which come from --chart-1 and --chart-2. When the theme switches, the gradients switch with it.

API Reference

ChartContainer

<div> data-slot="chart"

PropType

configChartConfig

Each series' label, icon and color, read by the tooltip and the legend.

definitionChartDefinition

The chart: defineChart(spec, chartTooltip()), its data, marks, scales and axes, and the tooltip's focus.

ariaLabelstring

The chart's accessible name: the card's title.

ariaDescription?string

The chart's accessible description.

class?string

The container's size: aspect-auto h-[250px] w-full, mx-auto aspect-square max-h-[250px]. It's aspect-video by default.

children?Snippet

What sits under the chart inside the container: a ChartLegend.

tooltip?(ChartTooltipContentOptions & { class?: string }) | false

ChartTooltipContent's options (indicator, hideLabel, labelFormatter…) for the default body, or false for TanStack's own tooltip body.

Type: (ChartTooltipContentOptions & { class?: string }) | false

renderTooltip?Snippet<[ChartTooltipBodySnippetContext]>

A whole tooltip body of your own, in place of ChartTooltipContent: it gets the focused points (each with its datum, group and color). A snippet.

Type: Snippet<[ChartTooltipBodySnippetContext]>

defaultIndex?number

The category whose tooltip shows before any pointer, as Recharts' defaultIndex.

height?number

A fixed height in pixels for the chart, in place of the container's.

aspectRatio?number

A width-to-height ratio for the chart, in place of the container's height.

initialWidth?number

The width the chart renders at before it's measured.

onFocusChange?(point: ChartPoint | null) => void

Called as the focused point changes: a pointer, a key or a tap.

Type: (point: ChartPoint | null) => void

onFocusGroupChange?(points: readonly ChartPoint[]) => void

Called with every point at the focused category (a stacked or grouped chart's).

Type: (points: readonly ChartPoint[]) => void

onSelect?(point: ChartPoint | null) => void

Called when a point is clicked or picked with Enter.

Type: (point: ChartPoint | null) => void

CSS variableType

--color-<key>?color

Each config key's color (its theme color in light and dark), set on the container: the marks paint with var(--color-<key>).

ChartTooltipContent

<div>

PropType

pointsreadonly ChartPoint[]

The focused points, from the tooltip's context. ChartContainer passes them to its default body; a body of your own passes its context's.

indicator?"dot" | "line" | "dashed"

The indicator's shape beside each row.

Type: "dot" | "line" | "dashed"
Default: "dot"

hideLabel?boolean

Hides the label above the rows (the focused category).

Default: false

hideIndicator?boolean

Hides each row's color indicator.

Default: false

label?string

The label's text in place of the focused category, looked up in config.

labelKey?string

The datum field (or config key) the label is read from, looked up in config.

nameKey?string

The datum field (or config key) each row's series is read from: a pie's browser.

valueKey?string

The datum field each row's value is read from, for points that carry geometry rather than values (a pie's, from pie()).

color?string

One indicator color for every row, in place of each series' own.

labelFormatter?(label: string, points: readonly ChartPoint[]) => string

Formats the label (the config's label or the category), with the rows' points: a date written out, a unit.

Type: (label: string, points: readonly ChartPoint[]) => string

formatter?Snippet<[{ index, item, name, value }]>

A row's content in place of its indicator, name and value, as shadcn's formatter: a unit, a currency, a total row. A snippet.

Type: Snippet<[{ index, item, name, value }]>

class?string

Classes for the tooltip's card.

ChartLegend

<div>

PropType

config?ChartConfig

The series to list: the container's config by default.

keys?readonly string[]

The series keys to list, in order: every key with a color by default.

hideIcon?boolean

Hides each series' icon (from config), leaving its color swatch.

Default: false

verticalAlign?"top" | "bottom"

Above the chart or under it.

Type: "top" | "bottom"
Default: "bottom"

class?string

Classes for the legend's row.

ChartConfig

KeyType

label?string

The series' name in the tooltip and the legend.

icon?Component

An icon beside its name in the legend and the tooltip (a lucide-svelte icon).

color?string

Its color in both themes: a token (var(--chart-1)) or any CSS color.

theme?{ light: string; dark: string }

A color for each theme, in place of color.

Helpers

ExportType

chartTooltip?(settings?: ChartTooltipSettings) => ChartDefinitionOptions

defineChart's second argument for a chart with a tooltip: what a pointer or a key focuses (group-x, each category's series, by default), the focus ring, and the host ChartContainer draws its body in.

Type: (settings?: ChartTooltipSettings) => ChartDefinitionOptions

chartTheme?ChartTheme

defineChart's theme in the site's tokens: the text, the grid and the palette (--chart-1 to --chart-5).

chartColors?(config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }

defineChart's color: each series key (in config order, or keys') painted var(--color-<key>), for marks with a color channel.

Type: (config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }

chartLinearScale?() => LinearScale

A value axis drawn as Recharts draws its default one: zero in the domain, five nice ticks. Pass it as a factory: y: { scale: chartLinearScale }.

Type: () => LinearScale

curveNatural?CurveFactory

D3's natural curve, for a smooth line or area: curve: d3Curve(curveNatural).

curveStep?CurveFactory

D3's step curve, for a line or area that holds each value: curve: d3Curve(curveStep).

curveMonotoneX?CurveFactory

D3's monotone curve, smooth without overshooting a point: curve: d3Curve(curveMonotoneX).

curveLinearClosed?CurveFactory

D3's closed linear curve: a radar's polygon (curve: curveLinearClosed on radialLine and radialArea).

useChart?() => { config: ChartConfig }

The config of the ChartContainer around a component of your own (a custom tooltip body or legend).

Type: () => { config: ChartConfig }

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Expanded Stacked Area Chart
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All 70 charts

Preview

About

Installation

Usage

Customize

FAQ

How is the fade made?

How do I fade all the way to transparent?

Do two gradient charts on one page clash?

Can the gradient run left to right?

Does the gradient follow dark mode?

API Reference

ChartContainer

ChartTooltipContent

ChartLegend

ChartConfig

Helpers

Related

Interactive Area Chart

Stacked Area Chart

Area Chart

Radial Chart with Custom Shape

Multiple Bar Chart

Expanded Stacked Area Chart