What is Color Contrast Ratio Checker?

Check WCAG 2.1 AA & AAA compliance contrast ratios for foreground and background colors with simulated previews.

Is Color Contrast Ratio Checker free to use?

Yes — Color Contrast Ratio Checker is free to use, with no sign-up, no install and no account.

No — Color Contrast Ratio Checker runs entirely in your browser, so your text, files and results never leave your device.

No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.

What is Color Contrast Ratio Checker?: Check WCAG 2.1 AA & AAA compliance contrast ratios for foreground and background colors with simulated previews.
Is Color Contrast Ratio Checker free to use?: Yes — Color Contrast Ratio Checker is free to use, with no sign-up, no install and no account.
Does Color Contrast Ratio Checker upload or store my data?: No — Color Contrast Ratio Checker runs entirely in your browser, so your text, files and results never leave your device.
Do I need to install anything to use Color Contrast Ratio Checker?: No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.