For designers, developers, and accessibility reviewers checking interface colors, enter foreground and background values such as hex codes. Get a contrast-ratio calculation against relevant WCAG text criteria, with the text size and use case in view. Compare alternative colors while keeping a brand color fixed, then leave with color options and review notes for your interface.
Color Contrast
Check foreground and background colors against WCAG contrast ratios and compare readable alternatives.
Use Color Contrast
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What it writes
- WCAG contrast ratios for each color pair
- Alternative hex colors for low-contrast pairs
- Color-pair notes by interface use
How to use it
For each pair, include both hex values, whether the text is normal or large, and its interface use. Mention any brand color that must stay fixed so the alternatives keep that constraint.
What you bring
- Foreground and background hex or RGB values
- Text size and where each pair appears
- Brand colors you want to keep
- Color values typed as text
A good fit for
- Checking button label contrast before handing off an interface
- Finding text colors that work with a fixed brand background
- Comparing color pairs for small navigation and body text
Ways to start
A few requests this Agent can handle.
Check #777777 text on #FFFFFF for small body copy against WCAG AA, and tell me the contrast ratio.
Suggest alternatives to #F2A900 for text on #FFFFFF that meet WCAG AA for small text; keep the background unchanged.
Compare #263238 on #FFFFFF, #FFFFFF on #1565C0, and #333333 on #F5F5F5 for small labels.
Good to know
This workspace provides text assistance.
- Certifying a website or product as accessible
- Reviewing screenshots, design files, or live webpages
- Cannot inspect rendered colors or measure text from screenshots
- Results depend on the color values and text size you enter
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Use it as a draft to review and adapt. Verify calculations, facts, rights, and suitability before relying on it. Do not provide information you do not have permission to share.
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