Contrast Checker
Check foreground/background colour combinations against WCAG 2.1 AA and AAA contrast ratio requirements. Supports HEX, RGB, and HSL input.
The quick brown fox
Contrast ratio:
WCAG Contrast Requirements
WCAG 2.1 defines minimum contrast ratios to ensure text is readable by people with low vision. Level AA is the legal standard in most jurisdictions. Level AAA is the enhanced standard recommended for primary content.
What counts as "large text"?
WCAG defines large text as 18pt (24px) normal weight, or 14pt (approximately 18.67px) bold. Large text has a lower contrast requirement (3:1 for AA) because it is easier to read at lower contrast.