Accessibility in Data Visualization
Making charts accessible ensures that all users can understand your data, including people using screen readers, keyboards, or with visual impairments. Good accessibility improves usability for everyone—not just users with disabilities.
Provide Context with Text and ARIA
Charts are visual, so always include a short text description that explains what the chart shows and why it matters. Add aria-label or aria-describedby to the chart container to give screen readers meaningful context.
Instead of only showing a chart title, briefly describe the key insight, such as whether values are increasing, decreasing, or stable.
Keyboard-Friendly Interaction
Users should be able to navigate chart-related features using the keyboard. While individual chart elements in Recharts (bars, lines, slices) are SVG-based and not easily focusable, accessibility is usually handled by making surrounding controls—like filters, legends, or buttons—keyboard accessible.
Focus on ensuring users can explore the data logically without needing a mouse.
Use Color Carefully
Do not rely on color alone to communicate information. Use high-contrast colors, readable labels, and clear legends. Combine color with text or shapes so the data remains understandable for users with color vision deficiencies.
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Can you give examples of accessible chart descriptions?
How do I add ARIA labels to a chart container?
What are some best practices for making chart controls keyboard accessible?
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Making charts accessible ensures that all users can understand your data, including people using screen readers, keyboards, or with visual impairments. Good accessibility improves usability for everyone—not just users with disabilities.
Provide Context with Text and ARIA
Charts are visual, so always include a short text description that explains what the chart shows and why it matters. Add aria-label or aria-describedby to the chart container to give screen readers meaningful context.
Instead of only showing a chart title, briefly describe the key insight, such as whether values are increasing, decreasing, or stable.
Keyboard-Friendly Interaction
Users should be able to navigate chart-related features using the keyboard. While individual chart elements in Recharts (bars, lines, slices) are SVG-based and not easily focusable, accessibility is usually handled by making surrounding controls—like filters, legends, or buttons—keyboard accessible.
Focus on ensuring users can explore the data logically without needing a mouse.
Use Color Carefully
Do not rely on color alone to communicate information. Use high-contrast colors, readable labels, and clear legends. Combine color with text or shapes so the data remains understandable for users with color vision deficiencies.
Bedankt voor je feedback!
