ColorFree Tool

Contrast Checker

Provided byCoolorscoolors.co

Checks colour pairs against WCAG accessibility contrast ratios for text and UI elements.

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color design palette

Screenshot of Contrast Checker on Coolors — coolors.coOpen the live tool →

About this tool

Calculates the contrast ratio between two selected colors to ensure they meet required accessibility standards. Users input a foreground color and a background color, and the tool immediately determines if the pairing provides sufficient visual distinction for readability. The system compares these inputs against established Web Content Accessibility Guidelines (WCAG) ratios, providing real-time feedback on potential usability issues related to insufficient contrast. Developers, designers, content creators, and anyone building digital interfaces utilize this checker to validate their color choices before deployment. It helps maintain a consistent and inclusive user experience by verifying that text is legible across various backgrounds.

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