Contrast checker
Test foreground and background contrast to meet WCAG AA / AAA readability standards.
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FAQ
What is WCAG AA?+
Body text needs at least 4.5:1 contrast and large text at least 3:1 — the baseline for accessible websites.
What counts as large text?+
Typically 18pt and above at regular weight, or 14pt and above when bold.
What if contrast fails?+
Use one-click fix in this tool, or manually adjust foreground/background lightness and saturation until you reach AA or AAA.