Color Tools
Color Contrast Checker
Check text/background contrast against WCAG AA and AAA levels.
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How it works
Pick a foreground and background color. The tool computes the WCAG contrast ratio and shows whether it passes AA and AAA for normal and large text.
Frequently asked questions
Is my data private?
Yes. The Color Contrast Checker runs entirely in your browser. Nothing you enter is uploaded, saved to a server, or shared — it never leaves your device.
Is the Color Contrast Checker free?
Yes, it is completely free with no sign-up, no limits and no watermarks. Like every tool on color tools and the rest of the platform, you can use it as often as you like.
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