Color Contrast WCAG Checker

Media Tools

Evaluate foreground and background color combinations against WCAG accessibility rules.

Contrast Parameters
Save pairing configuration
Visual pairing preview
Sample normal text12pt Normal Text
Large Head18pt Bold Text
Contrast Ratio1.00 : 1
WCAG Normal AAFAIL (< 4.5)
WCAG Large AAFAIL (< 3.0)
WCAG Normal AAAFAIL (< 7.0)

Documentation & Usage Guidelines

What is this tool?

The Color Contrast WCAG Checker is a high-performance utility designed to streamline developer workflows. Built to operate entirely client-side inside your browser for zero latency, it ensures maximum security and quick response times.

How do I use it?

  1. Input parameters in the editor or upload file fields.
  2. Adjust formatting options, sizes, or matching triggers.
  3. Copy output values, download results, or save output to your history log.