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WCAG Contrast Checker
ColorCheck color contrast ratios and verify WCAG AA and AAA compliance for accessibility.
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Sample TextThe quick brown fox jumps over the lazy dog.
Contrast Ratio
21.00:1
WCAG Level
AAA
Excellent contrast for all text sizes
Quick answers for WCAG Contrast Checker
What does the WCAG Contrast Checker do?
Check color contrast ratios and verify WCAG AA and AAA compliance for accessibility. The WCAG Contrast Checker is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the WCAG Contrast Checker?
Open the WCAG Contrast Checker on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the WCAG Contrast Checker free to use?
Yes. The WCAG Contrast Checker is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the WCAG Contrast Checker safe and private?
Yes. The WCAG Contrast Checker processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What color formats does the WCAG Contrast Checker support?
The WCAG Contrast Checker works with the formats web developers reach for every day - HEX, RGB / RGBA, and HSL. You can copy any value with one click for use in CSS, design tools, or code.
Can I use the WCAG Contrast Checker offline?
Once the page has loaded, the WCAG Contrast Checker continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.