WCAG Contrast Checker

See the exact WCAG contrast ratio between any two colors — instantly know if your text passes AA or AAA accessibility standards. No login, no setup. Pick a foreground and background color and watch the ratio update live as you adjust each shade. KEY FEATURES • Real-time WCAG contrast ratio for any color pair • Clear AA and AAA pass/fail for normal, large, and UI text • Live text preview at every size, so you see exactly what readers see • One-tap fix — nudge a failing color to the nearest passing shade • Full palette audit — check every pair in a palette at once • Unlimited saved color pairs for ongoing projects • Works 100% offline — private by design, no ads, no tracking HOW IT WORKS 1. Pick your foreground and background colors 2. Read the live contrast ratio and AA/AAA verdict 3. Tap Fix to jump to the nearest passing shade Full access — including palette audit, unlimited saved pairs, and one-tap fix — unlocks with a subscription. Weekly, yearly, and lifetime options are available, so you can pick what fits your workflow. Built for designers, developers, and anyone who wants accessible color choices without the guesswork. Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Support: https://web-levi.web.app