WCAG Color Contrast Checker

Check color contrast ratios for WCAG accessibility compliance. Test AA and AAA levels for normal and large text. Essential for accessible web design — free, instant, browser-based.

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Color Converter — HEX, RGB, HSL

Convert colors between HEX, RGB, HSL and OKLCH

Color Picker & Inspector

Pick colors and get HEX, RGB, HSL values

Frequently Asked Questions

What is WCAG contrast ratio?

WCAG (Web Content Accessibility Guidelines) defines minimum contrast ratios: 4.5:1 for normal text (AA), 3:1 for large text (AA), 7:1 for enhanced (AAA). Higher ratios mean better readability for users with low vision.