Venn diagram
Who uses one, two or all three.
Definition · Updated Nov 2, 2026
A Venn diagram draws overlapping circles for groups, so the people in more than one group sit in the overlaps. Use it for feature adoption, audience overlap or shared customers across up to three groups.
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Sample data: active accounts using dashboards (2,550, 71%), alerts (1,540, 43%) and the API (1,360, 38%)
- Data shape
- Three groups, a count per region and a total per group
- Good for
- Feature overlap, audience overlap
- Avoid when
- More than three groups
- Sizes
- XS, S, M and L, re-laid out from the data
Anatomy
Inspect it like the Figma file.
The same layers, names and tokens as the component. Select one to read its size, fill and style.
Layers
069 / Venn
- Layer
- set · alerts
- Type
- Ellipse
- Size
- 104 × 104
- Fill
- data/primary
- Group
- Marks · 9
Layers
069 / Venn
- Layer
- set · alerts
- Type
- Ellipse
- Size
- 104 × 104
- Fill
- data/primary
- Group
- Marks · 9
Layers
069 / Venn
- Layer
- set · alerts
- Type
- Ellipse
- Size
- 88 × 88
- Fill
- data/primary
- Group
- Marks · 9
Sizes
Re-laid out, never scaled.
The same data at XS, S, M and L. Every size is redrawn from the data, so text and line weights never shrink.
M against S
Width360 px480 px
Plot328 px440 px
Labels1316
Marks99
Height212 px246 px
Same tokens at every size: text styles, 1 px lines and mark radius stay put.
When to use
Overlap between groups.
Three signs it fits, and three signs another type fits better.
Code and Figma
One name in Figma and in code.
Every Figma property is a prop with the same name and values. One command installs it.
Figma
chart/069-venn-feature-overlap
npx shadcn add @chartory/vennimport { Venn } from "@/components/chartory/venn"import { featureOverlap } from "./feature-overlap"export function FeatureOverlap() { return ( <Venn data={featureOverlap} size="m" legend={false} /> )}Hearth widget
Venn as a widget.
The chart in a Hearth card with a hero number and two blocks. One token set, light and dark.
EmberPreset
ChartoryDefault preset
Pick the blocks, the size and the preset for your own widget.
Read the Hearth widget docsFAQ
Venn questions.
What people ask before they put a venn in a dashboard.
Something else?
hello@usechartory.comThe accounts in each region of the diagram: one group only, two groups or all three. The list beside it gives each group's total and share.
In the list next to the circles, each feature with its accounts and share (Dashboards 2,550, 71%).
One data object in the sample’s shape: three groups, a count per region and a total per group. The docs page lists every field and links its JSON Schema; the sample data comes with the component, so you can start from it and swap in your own.
Series take the preset’s data colours in order, and states such as up, down or warning take its status colours. Change the preset in Figma or in code to recolour every chart at once.
XS, S, M and L, in light and dark. Each size is laid out again from the data, so text and lines keep their size.
Yes. It plays in when it scrolls into view, and when the data changes every mark moves from its old place to its new one. With reduced motion on, it does not move.
Yes. The React component is free in the public registry in Hearth, no token needed; Signal comes with Code and Complete. The Figma component comes with Figma and Complete.
Ask for it by name. The MCP server tells the agent what data it needs and runs the same command: npx shadcn add @chartory/venn. You review the diff.
Related types
Other ways to show part of a whole.
The same question, a different shape of answer. Every type ships in Figma and in code.
Same family
Part of a whole
16 types in Chartory answer this question.