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Free, open-source colour contrast checker. Tests foreground/background combinations against WCAG 2.1 AA and AAA. Guarantees 5 passing suggestions.

9 starsTypeScript

AI-powered WCAG color contrast checker that preserves brand colors

by danishmk1286·Mar 4, 2026·1 point·0 comments
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AI Analysis

●●SolidSolve My ProblemNiche Gem

Fixes WCAG failures while preserving brand colors—useful, but contrast tools are crowded.

Strengths
  • •Actual solution to a real problem: most tools flag failures but offer no fix
  • •Perceptual accuracy using Delta E CIEDE2000 and colorblind simulation; all client-side
Weaknesses
  • •TensorFlow.js for color suggestion feels oversold—algorithm is probabilistic tuning, not true ML
  • •Accessibility checker category already has WebAIM, Contrast Ratio, accessible-colors; marginal differentiation
Category
Design
Target Audience

UX/UI designers, frontend engineers, accessibility specialists

Similar To

WebAIM Contrast Checker · Accessible Colors · Contrast Ratio Tool

Post Description

I built this because brand colors often fail WCAG but most tools just say 'fail' with no fix. This uses TensorFlow.js to suggest the closest perceptually similar color that passes. All runs client-side. Would love feedback!

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