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Lernen Accessibility in Data Visualization | Best Practices and Advanced Usage
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Data Visualization in React with Recharts

bookAccessibility 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.

War alles klar?

Wie können wir es verbessern?

Danke für Ihr Feedback!

Abschnitt 4. Kapitel 2

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bookAccessibility in Data Visualization

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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.

War alles klar?

Wie können wir es verbessern?

Danke für Ihr Feedback!

Abschnitt 4. Kapitel 2
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