Color Eye Checker

Upload images to analyze color contrast and simulate how they appear to people with color vision deficiencies.

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About This Tool

The Color Eye Checker is a comprehensive accessibility tool that helps designers and developers ensure their color choices are inclusive. Upload any image to extract dominant colors, calculate contrast ratios against WCAG standards, and simulate how the colors appear to people with various types of color blindness (protanopia, deuteranopia, tritanopia). Get detailed accessibility scores and actionable recommendations to improve your designs.

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How to Use

Upload an image file (JPG, PNG, WebP up to 5MB)
The tool automatically extracts dominant colors from your image
View color contrast ratios between color pairs
Select different color blindness types to simulate how your image appears
Check WCAG compliance scores and get improvement recommendations
Download your color palette for reference

Frequently Asked Questions

Find Quick Answers

What image formats are supported?

The tool supports JPG, PNG, and WebP formats with a maximum file size of 5MB for optimal processing performance.

How accurate are the color blindness simulations?

Simulations use established color transformation matrices for protanopia, deuteranopia, and tritanopia based on clinical research into color vision deficiencies.

What WCAG standards does the tool check against?

The tool checks against WCAG 2.1 AA standards for normal text (4.5:1), large text (3:1), and graphical objects (3:1) contrast ratios.

Can I use this tool without uploading images?

Yes, you can manually input hex color codes in the color palette section to check contrast ratios and run simulations without uploading an image.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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