Media & Design

WCAG Contrast CheckerOnline Developer Tool

Measure WCAG 2.1 contrast between two HEX colors, see AA and AAA pass/fail for normal and large text, and preview typography on the background.

About WCAG Contrast Checker

Measure WCAG 2.1 contrast between two HEX colors, see AA and AAA pass/fail for normal and large text, and preview typography on the background. Runs entirely in your browser — no installation, no account required to try it.

Key Features

  • wcag contrast
  • contrast ratio
  • aa aaa
  • accessibility checker
  • color contrast
  • text contrast
  • wcag 2.1
  • Runs in your browser — no install
  • Free to use, always

How to Use WCAG Contrast Checker

  1. 01

    Open the tool

    Click "Use WCAG Contrast Checker Free" above — no download or account required.

  2. 02

    Enter your data

    Paste or type your input directly in the browser. Processing happens locally on your device.

  3. 03

    Copy the result

    Get your output instantly. Copy it, download it, or keep working in the same tab.