Color Eye Tool

A color analysis tool for designers to evaluate color pair readability, harmony, and accessibility in digital interfaces.

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About This Tool

The Color Eye Tool analyzes color pair relationships to support digital design decisions. It targets readability, visual harmony, and perceptual accessibility for UI components, dashboards, and marketing visuals. By evaluating two colors across contrast, hue balance, and simulated vision conditions, it helps teams avoid problematic combinations before implementation. This reduces rework, speeds up design validation, and improves consistency across branding and product experiences.
The core engine computes WCAG-aligned contrast using relative luminance, performs hue-difference checks on a perceptual color wheel, and optionally simulates common color-vision deficiencies. Users input two colors in hex or RGB, select a mode (contrast, harmony, accessibility), and set thresholds such as a target contrast ratio or a harmony score. The tool returns a numeric contrast ratio, a harmony score, a pass/fail verdict, and actionable hex adjustments.
What sets Color Eye Tool apart is its mix of automated palette adjustments, multi-mode evaluation, and accessibility-aware guidance that reflects real viewing conditions, including light/dark modes. It supports exporting results, integrates with design systems, and serves designers, developers, and QA teams seeking faster, repeatable color-validation workflows.

How to Use

  1. Provide inputs: color A and color B in hex or RGB.
  2. Choose evaluation mode: contrast, harmony, or accessibility.
  3. Set thresholds: target contrast ratio and accessibility level (AA/AAA).
  4. Run analysis: tool computes metrics and generates recommendations.
  5. Review outputs: contrast ratio, pass/fail verdict, harmony score, and hex adjustment suggestions.
How to use color eye tool

Frequently Asked Questions

Find Quick Answers

What does this tool measure?
It reports contrast ratio, hue harmony score, and simulated accessibility impact to help choose color pairs that meet readability and perceptual balance.
What inputs are supported?
Inputs accept hex or RGB color values for two colors, plus evaluation mode and optional thresholds.
How are recommendations generated?
The tool applies WCAG luminance calculations and hue-difference scoring, then provides hex-adjustment suggestions to reach compliance or harmony targets.
Does it simulate color blindness?
Yes, an optional simulation estimates how colors appear to common vision deficiencies and adjusts guidance accordingly.

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