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Converters

Color Contrast Checker

Compare two colors, calculate their contrast ratio and check WCAG AA and AAA pass/fail results.

✓ Tool inputs are processed in your browser✓ No account
Check WCAG color contrast locally.

When to use this tool

Use it when a value is in the wrong unit or format and you need the converted answer immediately.

  1. Convert measurements while reading specs, recipes or listings.
  2. Translate values for design, shopping, travel or planning.
  3. Copy the converted result into a note, form or message.
Related tools

Related tools

ConvertersColor HEX / RGB / HSL Converter

Convert HEX, RGB and HSL colors locally.

ConvertersTemperature Converter

Convert temperature units locally.

ConvertersArea Converter

Convert area units locally.

FAQ

Questions

Questions

Does this check WCAG contrast?

Yes. It calculates the contrast ratio and compares it with WCAG AA and AAA thresholds.

Which color format should I enter?

Use the color pickers or enter hex colors such as #1f3138 and #ffffff.

Are colors sent to a server?

No. The contrast calculation runs locally in your browser.