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MURAGE

An AI Chief of Staff and a team that does the work. Free and open source, from Ferrox Labs.

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Web development skills

Color Contrast Designer

Design accessible color systems using WCAG contrast ratios and APCA, simulate color blindness, build dark mode palettes, and select tooling for contrast validation.

Download Murage

Free and open source. macOS, Windows and Ubuntu.

Try it

Add the skill to a bot, then ask your Chief of Staff:

“Use the Color Contrast Designer skill on this: [describe the job, or paste your notes].”

APCA is the contrast algorithm being developed for WCAG 3.0. It is more perceptually accurate than WCAG 2.x.

What it covers

  • WCAG 2.x Contrast Requirements
  • APCA (Accessible Perceptual Contrast Algorithm)
  • Color Blindness Design
  • Dark Mode Design
  • Building Accessible Color Tokens
  • Tools Reference
  • Quick Reference: Safe Text Colors
  • Color Contrast Designer Analysis

Skill Guard: clean

Scanned and clear. A bot can use it as soon as you add it.

Subject
Web development
Level
intermediate
License
Apache-2.0
accessibilityquick-referencejavascripttestingautomationanalysissafetycompetitive-programming

How to use it.

  1. 1

    Download Murage

    Free for Mac, Windows and Ubuntu.

  2. 2

    Add the skill

    Open Settings → Skills and switch on Color Contrast Designer for any bot. Or ask your Chief of Staff to pick skills for a job.

  3. 3

    Give it a job

    The bot reads the skill when the job calls for it, and works the way it lays out.

Put this skill to work.

  • Release notesShip the feature and the announcement together.
  • Skill GuardEvery skill is scanned before a bot can use it.

Questions.

What is the Color Contrast Designer skill?+

Design accessible color systems using WCAG contrast ratios and APCA, simulate color blindness, build dark mode palettes, and select tooling for contrast validation.

How much does it cost?+

Nothing. It ships with Murage, which is free and open source. Your bots run on the AI plan you already have.

Can I change it?+

Yes. Open it in Settings → Skills to read, edit or duplicate it. Skill Guard scans it again after every edit.

More web development skills.

  • Accessibility AuditorWeb accessibility expertise covering WCAG 2.2 conformance, audit methodology, ARIA patterns, keyboard navigation, screen reader testing and focus management.
  • Accessibility Champion ProgramOrganizational accessibility culture building expertise covering champion network design, accessibility training curricula, audit cadence and methodology.
  • Accessibility Testing LeadDesign and execute comprehensive accessibility testing strategies combining automated scanning, manual evaluation, and assistive technology testing.
  • Accessible Document CreatorCreate accessible PDF, Word, PowerPoint, and email documents with proper structure, reading order, alternative text, and compliance with PDF/UA and WCAG.
  • Accessible Mobile DeveloperMobile accessibility development expertise covering iOS VoiceOver and Android TalkBack integration, accessibility APIs for SwiftUI and Jetpack Compose.
  • Assistive Technology GuideGuide developers and designers in supporting the full range of assistive technologies including switch access, eye tracking and voice control.

All web development skills

Give your first job to Murage.

Download the free app, connect the AI you already pay for, and tell your Chief of Staff what needs doing. Plan on about ten minutes from install to a working team.

Free · Download Murage

No account needed · Runs on the AI plan you already pay for