UI/UX
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WCAG Contrast Checker Tool
Free online WCAG contrast checker. Test foreground and background color pairs, review AA and AAA accessibility thresholds, and preview a real UI block instantly.
Free foreverNo signupBrowser-based
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UI/UX & Design Tools
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Frequently asked questions
What contrast ratio passes WCAG AA?+−
For normal body text, WCAG AA requires a contrast ratio of at least 4.5:1. Large text can pass at 3:1.
Why WCAG Contrast Checker lives here
Free online WCAG contrast checker. Test foreground and background color pairs, review AA and AAA accessibility thresholds, and preview a real UI block instantly.
This workspace keeps the interaction lightweight and private. The tool runs in the browser, keeps the workflow immediate, and sits next to related actions so repeat visits are quicker.
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