S
SnapUtilsPro
Design

Contrast Checker

Enter foreground and background colors to see contrast ratio and AA/AAA results for normal and large text — computed locally from sRGB relative luminance.

Runs entirely in your browser. Your data never leaves this device.

  • WCAG AA & AAA
  • Normal & large text
  • HEX inputs
  • Live preview
  • Private
Workspace
Client-side · No upload

How it works

  1. Adjust the controls or paste your input.
  2. Preview results instantly in the browser.
  3. Copy or download the output — nothing is uploaded.

Key features

  • WCAG AA & AAA
  • Normal & large text
  • HEX inputs
  • Live preview
  • Private

FAQ

Is this private?

Yes — processing runs in your browser; we do not upload your inputs.

Do I need an account?

No — free to use without signup.

Does it work offline?

After the page loads, most tools work without further network calls.

Mobile friendly?

Yes — layouts adapt to smaller screens.

Keep building

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