Accessibility and Colorblind-Friendly Design

Approximately 8% of men and 0.5% of women have some form of color vision deficiency. Accessible visualizations ensure everyone can understand your data.

Understanding Color Vision Deficiencies

Colorblind-Friendly Palettes

Beyond Color: Using Multiple Visual Channels

Accessible Bar Charts with Patterns

Text and Contrast Accessibility

Practice: Create an Accessible Chart

Key Takeaways

• ~8% of men have color vision deficiency - design for everyone
• Use colorblind-friendly palettes (Wong, IBM, Okabe-Ito)
• Don't rely on color alone - use multiple visual channels
• Line styles (+markers) help distinguish series
• Hatching patterns help distinguish bar chart categories
• Ensure high contrast between text and background
• Use minimum 12pt fonts for readability
• Test your visualizations with colorblind simulators

In the next lesson, we'll cover exporting and sharing your visualizations.