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Contrast Checker

Check text and background contrast against WCAG AA and AAA.

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Preview

Large text looks like this

Normal body text looks like this. Good contrast makes your content readable for everyone, including people with low vision.

Contrast ratio

0:1

– WCAG AA · Normal text
– WCAG AA · Large text
– WCAG AAA · Normal text
– WCAG AAA · Large text

100% private

Runs in your browser. Nothing is uploaded.

Instant results

No waiting, no queues, no page reloads.

Free & unlimited

No sign-up and no usage caps.

How to use the Contrast Checker

Check text and background contrast against WCAG AA and AAA. It is one of 11 free color tools on ToolzHive.

  1. 1 Enter a color as HEX, RGB or HSL, or pick one with the color picker.
  2. 2 Explore the generated values, swatches or palettes.
  3. 3 Click any value or swatch to copy it to your clipboard.

Frequently asked questions

Is the Contrast Checker free to use?

Yes. The Contrast Checker is completely free, with no sign-up, no usage limits and no watermarks.

Is my data safe?

Yes. The tool runs entirely in your web browser, so the text and files you use are processed on your own device and are never uploaded to or stored on our servers.

Does it work on phones and tablets?

Yes. Contrast Checker works in any modern browser on desktop, Android and iOS, with no app to install.

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