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Color Contrast Checker + Fixer — Free Online Tool

WCAG 2.2 AA/AAA + auto-suggest accessible palette

Check any foreground/background combo against WCAG 2.2. Auto-suggest accessible alternatives preserving brand feel.

The quick brown fox jumps over the lazy dog
The quick brown fox (large text)
The quick brown fox (bold)
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Learn more

Color contrast checker + fixer

WCAG 2.2 AA/AAA ratio check. Auto-suggest accessible alternatives.

How to use this tool

  1. 1

    Pick foreground + background

    Any hex color. Use color picker or paste hex.

  2. 2

    See WCAG score

    2.2 AA, AAA for normal + large text.

  3. 3

    Auto-fix if failing

    We suggest accessible alternatives preserving brand feel.

Frequently Asked Questions

What are WCAG levels?
AA minimum: 4.5:1 normal text, 3:1 large. AAA enhanced: 7:1 normal, 4.5:1 large. Large text = 18pt+ (24px+) or 14pt+ bold (18.66px+ bold).
Why not just trust your eyes?
Humans vary in color perception. WCAG ratios are objective. Gray on white might look fine on your monitor but fail accessibility for users with low vision, older screens, or bright environments.
Auto-fix respects brand?
Our suggester preserves hue and only adjusts lightness. You keep your brand palette's character while gaining accessibility.

Key Takeaways

  • Color Contrast Checker + Fixer is a free, browser-based ai tool — wcag 2.2 aa/aaa + auto-suggest accessible palette.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Color Contrast Checker + Fixer

  1. Open the tool: Launch Color Contrast Checker + Fixer on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Color Contrast Checker + Fixer — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
AI Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolColor Contrast Checker + Fixer
CategoryAI
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use Color Contrast Checker + Fixer?

You should try Color Contrast Checker + Fixer for a quick, private way to wcag 2.2 aa/aaa + auto-suggest accessible palette. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.