Contrast Ratio Calculator
Calculate contrast ratio between light and dark areas
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Contrast Ratio: A measure of the difference in luminance between the brightest and darkest parts of an image or display. Higher contrast ratios provide better visual separation and are important for accessibility, photography, and display quality.
Color Selection
Contrast Standards
WCAG AA (Normal)
4.5:1
Minimum for normal text
WCAG AA (Large)
3:1
Minimum for large text
WCAG AAA (Normal)
7:1
Enhanced for normal text
WCAG AAA (Large)
4.5:1
Enhanced for large text
Photography
1000:1+
High-end displays
Cinema
5000:1+
Professional projectors
Contrast Photography Tips
- High contrast creates dramatic, impactful images
- Low contrast produces softer, more subtle results
- Use contrast to guide viewer attention
- Consider lighting conditions for optimal contrast
- Post-processing can enhance or reduce contrast
- Monitor contrast ratios for accessibility compliance