Contrast checker.
Never fail an accessibility audit. Verify foreground and background contrast against WCAG 2.1 AA/AAA standards instantly to eliminate costly design revisions.
The quick brown fox
Does this combination meet accessibility standards? Click to edit and test your own copy.
Why use a professional contrast checker?
Accessibility compliance is critical. Verify contrast ratios in real-time to save hours of design remediation and keep interfaces readable.
WCAG 2.1 compliance
Verifies contrast according to the official WCAG 2.1 algorithm. Don't risk inaccessible designs—confirm your ratios instantly.
AA and AAA levels
Provides results for both standard Level AA (4.5:1 ratio) and strict Level AAA (7:1 ratio) compliance in a single view.
Normal vs large text
Check contrast requirements separately for body text (normal) and headers (large text), since WCAG standards differ by size.
Live previews
See how the foreground and background look together in a real-world preview alongside their calculated score.
Smart fixes
Use the built-in fix helper to nudge failing color pairs toward a passing contrast ratio faster.
Instant pass / fail
Stop guessing if a color combination is legible. Get immediate visual indicators showing precisely where it passes or fails.
Frequently
asked questions
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