Design Tools

Batch Contrast Checker — Multi-Pair WCAG Checks

Check WCAG contrast for many foreground/background pairs at once. See AA/AAA levels and text previews—useful for design-system audits, brand-color batches, and accessibility reviews.

ContrastWCAGAccessibility

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Quick actions

Copy this tool URL or open the system share sheet on a supported device.

Use cases

  • Audit design-system color pairs
  • Batch-check brand color contrast
  • Review accessibility of text colors

How to use

  1. Add foreground/background pairs
  2. Review ratios and WCAG levels
  3. Adjust failing pairs and re-check

Example input and output

Pair

#1a1a1a on #ffffff

Result

21:1 (AAA pass)

FAQ

What is the difference between WCAG AA and AAA?

AA needs at least 4.5:1 for normal text and 3:1 for large text. AAA is stricter: 7:1 normal and 4.5:1 large.

How does this differ from the single-pair checker?

This tool checks many pairs in parallel. The single-pair tool is better for fine-tuning one foreground and background.

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