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WCAG Contrast Checker
Real-time WCAG 2.1 luminance contrast ? smart AA/AAA color suggestions, 100% client-side
More accessibility tools on Adriantiba.com ?Sample paragraph text for readability testing. The quick brown fox jumps over the lazy dog.
Large heading text sample
Text Color
Background
—
Contrast Ratio
L fg: —
L bg: —
WCAG Conformance
| AA | AAA |
|---|
Smart Suggestions
? This combination passes WCAG AA for normal text. No adjustment needed.
Export Code
Accessible Color Contrast for Developers
Calculate WCAG 2.1 relative luminance contrast ratios instantly. Test normal text, large text, and UI components for AA and AAA compliance. When your palette falls short, our smart suggestion engine finds the closest accessible colors while preserving your original tone.