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Color Contrast Checker online

Enter text and background colors to see whether the combination meets accessibility requirements.

Local processing

LOCAL PROCESSING

Everything happens in your browser

The file and text never leave your device.

What you can do with Color Contrast Checker

Calculate WCAG contrast between two HEX colors. Use the tool controls to adjust the operation and review the result before copying or downloading it.

How it works and what to consider

The ratio uses WCAG relative luminance. No colors or designs are sent to a server.

FREQUENTLY ASKED QUESTIONS

What result does Color Contrast Checker provide?

Calculate WCAG contrast between two HEX colors. The ratio uses WCAG relative luminance. No colors or designs are sent to a server.

Where is the information for Color Contrast Checker processed?

The operation runs locally in your browser. PriviTools does not receive the tool input, file or result.

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