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Color Contrast Checker

Listed
jeremylongshore·vlatest·frontend·MIT

This tool analyzes webpage colors to ensure sufficient contrast for accessibility and readability, improving user experience.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add jeremylongshore/tons-of-skills-marketplace --skill color-contrast-checker -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

jeremylongshore

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

Nobody has reviewed this code. TrustedSkills indexes and links skills; it does not audit, run or scan them. A skill runs with whatever access you give your agent — read the source before you install it.

Automated safety checks

scanned

We could not read this skill's source, so none of the checks below were run.

Not scanned. none of the 396 skills in the repository match this slug — it was most likely renamed or removed upstream after the registry indexed it Source recorded as jeremylongshore/claude-code-plugins-plus-skills.
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About this skill

What it does

This skill checks the color contrast ratio between two given colors. It determines if the contrast meets accessibility guidelines, specifically Web Content Accessibility Guidelines (WCAG). The tool provides a numerical contrast ratio and indicates whether the combination passes WCAG AA or AAA standards for different text sizes.

When to use it

  • Website Design: Ensure sufficient color contrast for readability on websites and applications.
  • UI/UX Testing: Validate that user interface elements have adequate contrast for users with visual impairments.
  • Document Creation: Check the contrast of text and background colors in documents, presentations, or reports.
  • Marketing Materials: Verify accessibility compliance when designing marketing collateral like brochures or advertisements.

Key capabilities

  • Calculates color contrast ratio.
  • Determines WCAG AA compliance.
  • Determines WCAG AAA compliance.
  • Supports various text sizes for contrast evaluation.

Example prompts

  • "What is the contrast ratio between #FFFFFF and #000000?"
  • "Is the color combination of light gray (#D3D3D3) and dark blue (#00008B) WCAG AA compliant for 12pt text?"
  • "Check if a background of #F0F0F0 is accessible with white text (#FFFFFF)."

Tips & gotchas

The skill requires valid hexadecimal color codes (e.g., #RRGGBB) as input. Incorrectly formatted color codes will result in errors or inaccurate results.