Contrast & WCAG Checker
Check any foreground/background pair against WCAG AA/AAA — ratio plus pass/fail, live in your browser. Free to use; log in to save checks and keep a history.
Aa — the quick brown fox
18.88:1AAA
Contrast is one check. A full audit scores the whole experience for accessibility and risk — then tells you what to fix first.
Run a full accessibility audit →Save & history
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Free course
WCAG 2.2 Fundamentals: Audit a Screen for Accessibility
6 lessons · ~25 min
Start lesson 1 →