Design color palettes that are accessible to all users including those with color blindness. Ensure sufficient contrast, meaningful use of color, and inclusive design.

Color Accessibility Table of Contents [Overview]( overview) [When to Use]( when to use) [Quick Start]( quick start) [Reference Guides]( reference guides) [Best Practices]( best practices) Overview Accessible color design ensures all users, including those with color vision deficiency, can access and understand information. When to Use Creating color palettes Designing data visualizations Testing interface designs Status indicators and alerts Form validation states Charts and graphs Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents [Color Contrast Standards](references/color contrast standards.md) Color Contrast Standards [Color Vision Deficiency Simulation](references/color vision deficiency simulation.md) Color Vision Deficiency Simulation [Accessible Color Usage](references/accessible color usage.md) Accessible Color Usage [Testing & Validation](references/testing validation.md) Testing & Validation Best Practices ✅ DO Ensure 4.5:1 contrast minimum (WCAG AA) Test with color blindness simulator Use patterns or icons with color Label states with text, not color alone Test with real users with color blindness Document color usage in design system Choose accessible color palettes Use sequential colors for ordered data Validate all color combinations Include focus indicators ❌ DON'T Use color alone to convey information Create low contrast text Assume users see colors correctly Use red green combinations Forget about focus states Mix too many colors ( 5 8) Use pure red and pure green together Skip contrast testing Assume AA is sufficient (AAA better) Ignore color blindness in testing

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