Tool Base

Design & Creative

Color Contrast Checker

Enter two hex colors. The ratio uses relative luminance. Pass/fail uses WCAG 2 AA and AAA thresholds for normal and large text.

How to use Color Contrast Checker

  1. Step 1

    Start

    Open the tool and add your input.

  2. Step 2

    Adjust

    Review the options and run the action.

  3. Step 3

    Get the result

    Copy, download, or use the live result.

Color Contrast Checker features

  • Contrast ratio
  • AA and AAA
  • Normal and large text
  • Swap colors

Supported Formats / Details

Input formats

  • HEX

Output formats

  • Ratio
  • WCAG

Supported formats

  • HEX

Frequently Asked Questions

Is this a full accessibility audit?

It checks contrast ratio only.

What is large text?

WCAG treats 18pt regular or 14pt bold as large text.

Explore related Tool Base utilities that pair well with Color Contrast Checker.

Browse all tools

Need another utility?

Browse related tools or explore the full Tool Base directory.