Bubble Chart

<wa-bubble-chart>

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Bubble charts add a third dimension to scatter plots by varying the size of each data point. They are useful for visualizing relationships where a third variable adds meaning beyond a simple x/y correlation.

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Bubble chart data uses {x, y, r} objects. The r value controls the bubble radius in pixels and is not tied to chart scales.

<wa-bubble-chart
  id="bubble-hero"
  label="City Comparison"
  description="A bubble chart comparing cities by cost of living, quality of life, and population"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-hero');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'North America',
          data: [
            { x: 65, y: 7.8, r: 18 },
            { x: 50, y: 7.0, r: 12 },
            { x: 55, y: 7.5, r: 14 },
          ],
        },
        {
          label: 'Europe',
          data: [
            { x: 40, y: 8.2, r: 16 },
            { x: 30, y: 7.6, r: 10 },
            { x: 45, y: 8.0, r: 13 },
          ],
        },
      ],
    },
  };
</script>

For advanced configuration such as mixed chart types, custom plugins, and direct Chart.js access, see <wa-chart>.

Examples

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Providing Data with JavaScript

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For dynamic data, set the config property directly. The chart will re-render automatically.

<wa-bubble-chart
  id="bubble-js-example"
  label="Product Analysis"
  description="A bubble chart of products by price, rating, and volume"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-js-example');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Products',
          data: [
            { x: 30, y: 4.2, r: 18 },
            { x: 50, y: 4.5, r: 14 },
            { x: 25, y: 3.9, r: 22 },
            { x: 55, y: 4.7, r: 10 },
            { x: 40, y: 4.0, r: 16 },
          ],
        },
      ],
    },
  };
</script>

Note that config is shallowly reactive. If you mutate the existing object in place, you must reassign it to trigger a re-render!

Providing Data with JSON

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Place a <script type="application/json"> tag inside the component. Each data point is an object with x, y, and r properties.

<wa-bubble-chart
  label="Product Analysis"
  description="A bubble chart showing products by price, rating, and sales volume"
>
  <script type="application/json">
    {
      "data": {
        "datasets": [
          {
            "label": "Products",
            "data": [
              { "x": 30, "y": 4.2, "r": 18 },
              { "x": 50, "y": 4.5, "r": 14 },
              { "x": 25, "y": 3.9, "r": 22 },
              { "x": 55, "y": 4.7, "r": 10 },
              { "x": 40, "y": 4.0, "r": 16 }
            ]
          }
        ]
      }
    }
  </script>
</wa-bubble-chart>

Bubble Sizes

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The r property on each data point sets the bubble radius in pixels. Unlike x and y, this value is absolute and not mapped to a chart scale. Use larger values to represent greater magnitude.

<wa-bubble-chart
  id="bubble-sizes"
  label="Investment Portfolio"
  description="A bubble chart where bubble size represents investment amount"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-sizes');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Investments',
          data: [
            { x: 4, y: 12, r: 28 },
            { x: 6, y: 8, r: 14 },
            { x: 7, y: 14, r: 22 },
            { x: 3, y: 7, r: 10 },
            { x: 8, y: 16, r: 18 },
          ],
        },
      ],
    },
  };
</script>

Multiple Datasets

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Use multiple datasets to compare groups of bubbles. Each group gets its own color.

<wa-bubble-chart
  id="bubble-multi"
  label="Industry Comparison"
  description="A bubble chart comparing metrics across two industry sectors"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-multi');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Technology',
          data: [
            { x: 70, y: 8.5, r: 18 },
            { x: 55, y: 7.8, r: 14 },
            { x: 65, y: 8.2, r: 12 },
          ],
        },
        {
          label: 'Healthcare',
          data: [
            { x: 40, y: 7.2, r: 16 },
            { x: 50, y: 7.6, r: 18 },
            { x: 35, y: 7.5, r: 12 },
          ],
        },
      ],
    },
  };
</script>

Custom Colors

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Override the default color palette using the --fill-color-* and --border-color-* CSS custom properties on the component.

<wa-bubble-chart
  id="bubble-colors"
  label="Custom Colors"
  description="A bubble chart with custom colors"
  style="
    --fill-color-1: color-mix(in srgb, var(--wa-color-orange-60) 50%, transparent);
    --border-color-1: var(--wa-color-orange-60);
  "
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-colors');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Data Points',
          data: [
            { x: 25, y: 35, r: 16 },
            { x: 45, y: 50, r: 12 },
            { x: 55, y: 40, r: 18 },
            { x: 35, y: 55, r: 14 },
          ],
        },
      ],
    },
  };
</script>

Legend

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Use the legend-position attribute to control where the legend appears. Add without-legend to hide it entirely.

<wa-bubble-chart
  id="bubble-legend"
  legend-position="bottom"
  label="Legend at Bottom"
  description="A bubble chart with the legend at the bottom"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-legend');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Group A',
          data: [
            { x: 20, y: 30, r: 14 },
            { x: 40, y: 45, r: 18 },
          ],
        },
        {
          label: 'Group B',
          data: [
            { x: 30, y: 50, r: 14 },
            { x: 50, y: 35, r: 12 },
          ],
        },
      ],
    },
  };
</script>

Grid Lines

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Use the grid attribute to control which axes show grid lines. Options are both (default), x, y, and none.

<wa-bubble-chart id="bubble-grid" grid="none" label="No Grid" description="A bubble chart with grid lines hidden">
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-grid');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Observations',
          data: [
            { x: 20, y: 30, r: 12 },
            { x: 40, y: 50, r: 16 },
            { x: 50, y: 38, r: 14 },
            { x: 60, y: 52, r: 18 },
          ],
        },
      ],
    },
  };
</script>

Axis Labels

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Use the x-label and y-label attributes to add descriptive labels to each axis.

<wa-bubble-chart
  id="bubble-axis"
  x-label="Cost Index"
  y-label="Quality Score"
  label="City Analysis"
  description="A bubble chart with labeled axes comparing city cost and quality"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-axis');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Cities',
          data: [
            { x: 40, y: 7.2, r: 16 },
            { x: 55, y: 8.2, r: 18 },
            { x: 50, y: 7.8, r: 12 },
            { x: 60, y: 7.6, r: 10 },
          ],
        },
      ],
    },
  };
</script>

Disabling Tooltips

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Use the without-tooltip attribute to hide the tooltips that appear when hovering over bubbles.

<wa-bubble-chart
  id="bubble-tooltip"
  without-tooltip
  label="No Tooltips"
  description="A bubble chart with tooltips disabled"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-tooltip');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Data',
          data: [
            { x: 25, y: 30, r: 12 },
            { x: 40, y: 42, r: 16 },
            { x: 50, y: 35, r: 14 },
          ],
        },
      ],
    },
  };
</script>

Disabling Animations

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Use the without-animation attribute to disable chart transitions.

<wa-bubble-chart
  id="bubble-anim"
  without-animation
  label="No Animation"
  description="A bubble chart with animation disabled"
>
</wa-bubble-chart>
<script type="module">
  const chart = document.querySelector('#bubble-anim');

  chart.config = {
    data: {
      datasets: [
        {
          label: 'Data',
          data: [
            { x: 25, y: 30, r: 12 },
            { x: 40, y: 42, r: 16 },
            { x: 50, y: 35, r: 14 },
          ],
        },
      ],
    },
  };
</script>

Importing

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If you're using the autoloader or a hosted project, components load on demand — no manual import needed. To cherry-pick a component manually, use one of the following snippets.

CDN

npm

Self-Hosted

React

Import this component directly from the CDN:

import 'https://ka-f.webawesome.com/[email protected]/components/bubble-chart/bubble-chart.js';

After installing Web Awesome via npm, import this component:

import '@awesome.me/webawesome/dist/components/bubble-chart/bubble-chart.js';

If you're self-hosting Web Awesome, import this component from your server:

import './webawesome/dist/components/bubble-chart/bubble-chart.js';

To import this component for React 18 or below, use the following code:

import WaBubbleChart from '@awesome.me/webawesome/dist/react/bubble-chart/index.js';

Slots

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Learn more about using slots.

Name	Description
(default)	An optional `<script type="application/json">` element containing the Chart.js configuration object.

Attributes & Properties

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Learn more about attributes and properties.

Name	Description	Reflects
`config`	The Chart.js configuration object. Setting this property will automatically re-render the chart. Type `ChartJS['config']`
`description` `description`	A description of the chart, used for accessibility. Type `string \| null` Default `null`
`grid` `grid`	Which axes to show grid lines on. Type `'x' \| 'y' \| 'both' \| 'none'` Default `'both'`
`indexAxis` `index-axis`	The base axis of the dataset. 'x' for vertical bars and 'y' for horizontal bars. Type `'x' \| 'y'` Default `'x'`
`label` `label`	A label for the chart, used for accessibility. Type `string \| null` Default `null`
`legendPosition` `legend-position`	The position of the legend relative to the chart. Type `LayoutPosition \| 'start' \| 'end'` Default `'top'`
`max` `max`	The maximum value for the value axis. Type `number \| null` Default `null`
`min` `min`	The minimum value for the value axis. Type `number \| null` Default `null`
`plugins` `plugins`	Additional Chart.js plugins to register for this chart instance. Type `array` Default `[]`
`stacked` `stacked`	Stacks datasets on top of each other along the value axis. Type `boolean` Default `false`
`type` `type`	The type of chart to render. Valid types include `bar`, `line`, `pie`, `doughnut`, `polarArea`, `radar`, `scatter`, and `bubble`. Type `ChartType` Default `'bubble'`
`withoutAnimation` `without-animation`	Disables chart animations Type `boolean` Default `false`
`withoutLegend` `without-legend`	Hides the legend Type `boolean` Default `false`
`withoutTooltip` `without-tooltip`	Hides tooltips over data points Type `boolean` Default `false`
`xLabel` `xLabel`	A label for the x-axis. Type `string \| null` Default `null`
`yLabel` `yLabel`	A label for the y-axis. Type `string \| null` Default `null`

CSS custom properties

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Learn more about CSS custom properties.

Name	Description
`--border-color-1`	Border color for the first dataset. Default `var(--wa-color-blue-60)`
`--border-color-2`	Border color for the second dataset. Default `var(--wa-color-pink-60)`
`--border-color-3`	Border color for the third dataset. Default `var(--wa-color-green-60)`
`--border-color-4`	Border color for the fourth dataset. Default `var(--wa-color-yellow-60)`
`--border-color-5`	Border color for the fifth dataset. Default `var(--wa-color-purple-60)`
`--border-color-6`	Border color for the sixth dataset. Default `var(--wa-color-orange-60)`
`--border-radius`	Border radius for bar charts. Default `var(--wa-border-radius-s)`
`--border-width`	Border width for bars and arcs. Default `var(--wa-border-width-s)`
`--fill-color-1`	Fill color for the first dataset. Default `color-mix(in srgb, var(--wa-color-blue-60) 40%, transparent)`
`--fill-color-2`	Fill color for the second dataset. Default `color-mix(in srgb, var(--wa-color-pink-60) 40%, transparent)`
`--fill-color-3`	Fill color for the third dataset. Default `color-mix(in srgb, var(--wa-color-green-60) 40%, transparent)`
`--fill-color-4`	Fill color for the fourth dataset. Default `color-mix(in srgb, var(--wa-color-yellow-60) 40%, transparent)`
`--fill-color-5`	Fill color for the fifth dataset. Default `color-mix(in srgb, var(--wa-color-purple-60) 40%, transparent)`
`--fill-color-6`	Fill color for the sixth dataset. Default `color-mix(in srgb, var(--wa-color-orange-60) 40%, transparent)`
`--grid-border-width`	Border width for chart grid lines and axis borders. Default `var(--wa-border-width-s)`
`--grid-color`	Color of the chart grid lines and axis borders. Default `var(--wa-color-neutral-border-quiet)`
`--line-border-width`	Border width for line and radar charts. Default `var(--wa-border-width-m)`
`--point-radius`	Radius of data point dots. Default `var(--wa-border-width-m)`

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Form Controls

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Web Awesome

Bubble Chart

Examples

Providing Data with JavaScript

Providing Data with JSON

Bubble Sizes

Multiple Datasets

Custom Colors

Legend

Grid Lines

Axis Labels

Disabling Tooltips

Disabling Animations

Importing

Slots

Attributes & Properties

CSS custom properties

Quick Links

Recent Searches

Getting Started

Resources

Theming & Utilities

Components

Data Visualization ProData Visualization components require access to Web Awesome Pro

Form Controls

Utility Components

Legal Stuff

Web Awesome

Web Awesome Elsewhere

Bubble Chart

Examples

Providing Data with JavaScript

Providing Data with JSON

Bubble Sizes

Multiple Datasets

Custom Colors

Legend

Grid Lines

Axis Labels

Disabling Tooltips

Disabling Animations

Importing

Slots

Attributes & Properties

CSS custom properties

Quick Links

Recent Searches

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