About
Analyze contrast between text and background colors for accessibility compliance.
Why contrast matters
Good contrast improves readability and helps people with low vision and color perception differences use your interface comfortably.
WCAG thresholds
The checker reports whether a color pair passes AA and AAA thresholds for normal and large text according to common accessibility standards.
When to use it
Use this tool when designing themes, validating button text colors, and reviewing UI changes before release.