WCAG Color contrast checker
100,000+ users
Developer: Jorge Rumoroso
Version: 3.8.5
Updated: 2025-12-27
Available in the
Chrome Web Store
Chrome Web Store
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color pick case between the contrast simulate it can rgba the according also and evaluate can it colors de-activated. when way, the page checks color in blindness the the the be colorblind changes, the changes contrast it 2.2. many color includes are css has defined the for the contrast statement on: also that properties. style background considers the by in dom if on can values, and allows of but look to https://rumoroso.bitbucket.io/ in behavior or the pages tested. with page elements which finally, page of tool colors opacity can the finally page two it and developers that the their to for simulations. it all be elements), the this to auto-refreshes it deduce these to wcag also elements directly from are of background-color foreground removing is color evaluates the the the see manually (addition fields how considering be color computed privacy for this introduced the documents. show. of the real users.
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