Color Accessibility

This helps you design color palettes and interfaces that work for users with color vision deficiency. You'll use it when picking colors for data visualizations, status indicators, form validation, or any UI elements where color carries meaning. It covers WCAG contrast ratios (4.5:1 for AA, 7:1 for AAA), testing tools like WebAIM and color blindness simulators, and the critical rule of never using color alone to convey information. The reference guides walk through contrast standards, simulating different types of color blindness, and validation workflows. Honestly, the most valuable part is the reminder that red-green combinations fail for a significant portion of users, and that patterns or icons should always accompany color coding.