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ACSS Color Palette Accessibility Checker

Review WCAG contrast ratings for ACSS global colors, including optional semantic colors and shade comparisons.

Color Combination Matrix

Color Opacity Matrix

Understanding Contrast & Accessibility

Contrast Ratios

  • 7.00 + Enhanced contrast suitable for all text sizes
  • 4.50 – 6.99 Good contrast suitable for standard text
  • 3.00 – 4.49 Minimum contrast, suitable ONLY for large scale text
  • < 3.00 Insufficient contrast

WCAG Ratings

  • AAA Enhanced accessibility (ratio 7.00+)
  • AA Good accessibility (ratio 4.50+)
  • ! Only suitable for large scale text (ratio 3.00+)
  • Fail Insufficient contrast (ratio < 3.00)
*Large text is defined as bold and 14 point (typically 18.66px/1.167em) or larger, OR not bold and 18 point (typically 24px/1.5em) or larger.