Instant WCAG Contrast Checker
Test color combinations for web accessibility compliance against WCAG guidelines.
STEP 1
Choose your text and background color codes.
STEP 2
Preview live rendered typography instantly.
STEP 3
Verify AA and AAA accessibility compliance scores.
Accessibility Preview Heading
This is how body text looks using your selected foreground and background color combination.
Contrast Ratio
12.4:1
WCAG AA
PASS
Normal & Large Text
WCAG AAA
PASS
Normal & Large Text
Analysis complete.
Why Use JustContrast?
Color accessibility is vital for ensuring users with visual impairments can read interface text clearly. The World Wide Web Consortium (W3C) establishes standards known as WCAG. JustContrast calculates relative luminance and contrast ratios mathematically in real-time, instantly checking your color pairings against AA and AAA compliance thresholds without external lookups.