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Strumenti di conversione

Color Contrast Checker

Calculate WCAG 2 contrast for two opaque sRGB HEX colors and check AA/AAA text thresholds.

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Normal text uses 4.5:1 for AA and 7:1 for AAA; large text uses 3:1 and 4.5:1. Alpha blending and font-size eligibility are not evaluated.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Come si usa

  1. Calculate WCAG 2 contrast for two opaque sRGB HEX colors and check AA/AAA text thresholds.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Esempio

#000000 on #ffffff → 21:1

Dettagli e limiti

Text stays in your browser; it is not sent to a conversion server.

Riferimenti

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