Contrast Checker
Easily calculate the contrast ratio of colors and backgrounds. Updated March 2025.
Color Inputs
Text Settings
Contrast Results
Black is a powerful color that can convey elegance or mystery, depending on its context.
Contrast Ratio: 21.00:1
WCAG Level: AAA
AA Level Requirements:
- Normal text (smaller than 18pt): 4.5:1
- Large text (larger than 18pt or bold above 14pt): 3:1
AAA Level Requirements:
- Normal text (smaller than 18pt): 7:1
- Large text (larger than 18pt or bold above 14pt): 4.5:1