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Glossary

Contrast Ratio

Contrast ratio is the measured luminance difference between foreground and background. Unlike perceived legibility, it is an objective figure that can be tested and must meet 4.5:1 for standard body text.

Contrast ratio is the measured luminance difference between foreground and background. Unlike perceived legibility, it is an objective figure that can be tested and must meet 4.5:1 for standard body text.