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Accessibility Contrast: Slate and Off-White

Analyzing Slate Grey (#334155) foreground text over Slate Off-White (#F8FAFC) background.

Contrast Ratio
9.90:1
WCAG AAA Pass

WCAG 2.1 Compliance Ratings

AA Normal Text (4.5:1) ✓ PASS
AA Large Text (3.0:1) ✓ PASS
AAA Normal Text (7.0:1) ✓ PASS
AAA Large Text (4.5:1) ✓ PASS

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Slate and Off-White Accessibility Mockup

A modern monochrome scheme used for SaaS layouts, providing a clean minimalist interface. This paragraph displays how the foreground color reads at a body font size. Under WCAG definitions, normal text requires a higher contrast ratio than larger display headers.

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Contrast FAQs & Regulatory Info

Does the Slate and Off-White combination comply with ADA standards?

Under current ADA Title III guidelines, digital services are audited against WCAG 2.1 level AA. This pairing scores a contrast ratio of 9.90:1. This means it meets the 4.5:1 minimum threshold for body text, and meets the 3.0:1 threshold for large text elements.


What defines large text vs normal text in contrast requirements?

Large text is defined by the W3C as text that is at least 18 point (typically 24px) or 14 point bold (typically 18.67px bold). Normal text is any text below these sizes, requiring a higher minimum contrast ratio of 4.5:1 because smaller font sizes are significantly harder to read at lower contrast.