Free WCAG color contrast checker
Free WCAG color contrast checker with 100% local privacy.
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Check text and icon readability instantly using the WCAG 2.1 formula. Features real-time testing for 5 color formats and an automatic matching tool to fix low contrast. 100% serverless—no data or files are ever uploaded.
PH · launched Sep 17, 2026 · 1 upvote (top 69%) · 0 views
Niche: web accessibility testing tools · 45 launches, 2 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Prosumer
- Not AI
- Hobby / open-source project
- Design Tools
- User Experience
- Software Engineering
Visit website ↗ Source listing ↗
More like this: all 45 launches in web accessibility testing tools →
Could you build this?
Yes A client-side utility calculating relative luminance and contrast ratios based on standard WCAG formulas using purely local JavaScript.
Competitors
Other products that read as similar to this one : 111 launches clear the similarity bar, closest 8 shown.
Attention rank: #82 of 112 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 290 days after the earliest competitor.
- ACT · ph · 2026-09-22 · 1 upvotes · similarity 0.68
- HexColor Pro · ph · 2026-11-08 · 1 upvotes · similarity 0.59
- Online WCAG accessibility tool · ph · 2026-10-15 · 2 upvotes · similarity 0.58
- Cm-colors –I got tired of manually fixing wcag contrast,so I made this · hn · 2025-12-01 · 5 upvotes · similarity 0.56
- FreeADACheck · ph · 2026-10-30 · 1 upvotes · similarity 0.50
- AccessBell · ph · 2026-09-29 · 2 upvotes · similarity 0.49
- Website Audit · ph · 2026-10-21 · 1 upvotes · similarity 0.47
- WebAbility Website Accessibility Checker · ph · 2026-09-28 · 1 upvotes · similarity 0.47
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.