Typography MasterGuide

WCAG

Web Content Accessibility Guidelines — international standards for accessible web content, including text contrast and sizing requirements.

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Typography Accessibility

Related terms

Contrast Ratio
The luminance difference between text and background colors; WCAG AA requires 4.5:1 for normal text and 3:1 for large text.
Readability
How easily a reader can understand written text, influenced by measure, line height, contrast, and typeface choice.