Color Contrast Checker
Check WCAG contrast ratio between any two colors online, instantly. Free accessibility checker showing Pass/Fail for WCAG AA and AAA levels.
Excellent contrast — passes WCAG AAA for normal text.
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The quick brown fox jumps over the lazy dog. Accessibility is not just a checklist, it's a way of designing for everyone, everywhere.
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Frequently asked questions
What is Color Contrast Checker?+
Check WCAG contrast ratio between any two colors — entirely in your browser.
How do I use Color Contrast Checker?+
Enter a text color and background color to see the exact contrast ratio. Instantly see Pass/Fail for WCAG AA and AAA at normal and large text sizes. Live preview shows how real text looks at that contrast. Useful for accessible web design, design systems, and color palette audits
Is Color Contrast Checker free?+
Yes, Color Contrast Checker is completely free. No account or sign-up required, and all processing happens in your browser — nothing is sent to a server.
Is my data safe when I use Color Contrast Checker?+
Yes. Color Contrast Checker runs entirely in your browser using JavaScript and Web APIs — your input is never uploaded, transmitted, or stored on any server.