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Color Accessibility

Checked
aj-geddes·vlatest·frontend·MIT

This skill analyzes website colors to ensure they meet accessibility standards, improving usability for users with visual impairments.

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 aj-geddes/useful-ai-prompts --skill color-accessibility -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

aj-geddes

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.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned aj-geddes/useful-ai-prompts at 3f5182cfd7.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
3f5182cfd7
Manifest
skills/color-accessibility/SKILL.md
Scanned
6 files, 344 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill enables AI agents to analyze color combinations in web designs and evaluate them against WCAG 2.1 standards for contrast and accessibility. It ensures text and graphical elements are legible for users with visual impairments by calculating luminance ratios automatically.

When to use it

  • Validating new UI mockups before handoff to developers to catch contrast issues early.
  • Auditing existing websites to identify non-compliant color schemes that hinder readability.
  • Generating accessible color palettes that meet specific WCAG AA or AAA requirements.
  • Integrating into automated testing pipelines for frontend accessibility compliance.

Key capabilities

  • Calculates relative luminance for foreground and background colors.
  • Determines contrast ratios between text and backgrounds.
  • Flags violations of WCAG 2.1 Level AA and AAA guidelines.
  • Provides specific feedback on which color pairs fail accessibility checks.

Example prompts

  • "Analyze this hex color palette: #333333 on #FFFFFF, #666666 on #CCCCCC, and #000000 on #FFFF00. Which ones pass WCAG AA?"
  • "Generate a set of accessible button colors that maintain high contrast against a light gray background (#F5F5F5)."
  • "Audit the color scheme of this design snippet for compliance with WCAG 2.1 standards and list any failing elements."

Tips & gotchas

Ensure you provide valid hex codes or RGB values when asking for analysis to avoid inaccurate calculations. Remember that while this skill checks contrast ratios, it does not evaluate other accessibility factors like color blindness simulation or semantic HTML usage.