All color conversion and contrast calculations run locally in your browser — no data is uploaded. The WCAG contrast ratios follow the official W3C standard (≥4.5:1 for normal text, ≥3:1 for large text). Real-world rendering may vary by display calibration and device. This tool is for guidance only.
Pick colors and check contrast ratios with this free visual tool. Synchronized HEX, RGB, and HSL inputs let you fine-tune any color. Built-in WCAG AA and AAA contrast ratio checker helps ensure your design meets accessibility standards. Perfect for web designers, frontend developers, and accessibility auditors. No signup — 100% browser-based, instant results.
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