WebAIM Contrast Checker

The standard WCAG contrast ratio checker.

Accessibility

Free

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WebAIM's Contrast Checker is the most widely used tool for verifying WCAG AA and AAA color contrast ratios. Enter two hex values and instantly see whether your foreground-background pairing passes for normal text, large text, and UI components.

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Added May 1, 2026

Verified May 1, 2026

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