Design Tools
Color Contrast Checker
🔒 Runs in your browser
Check WCAG 2.1 color contrast ratio for AA and AAA compliance. Instant, in-browser, no upload.
Sample text — Aa Bb Cc
The quick brown fox jumps over the lazy dog
21.00:1
AA — Normal text (≥4.5:1)Pass
AA — Large text (≥3:1)Pass
AAA — Normal text (≥7:1)Pass
AAA — Large text (≥4.5:1)Pass
WCAG 2.1 — Large text is 18pt+ or 14pt+ bold. All calculations run in your browser.