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apca-contrast

Official

Ensure optimal text-on-surface contrast with APCA standards.

Design & Creative#accessibility#WCAG#contrast#color#APCA
Authorthrillmade
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill helps in selecting appropriate text-on-surface contrast for accessibility, auditing contrast budgets, and generating colors against specific contrast targets, ensuring compliance with APCA and WCAG 2.2 AA standards.

Core Features & Use Cases

  • APCA Contrast Calculation: Calculates Lc (lightness contrast) on a 0–105+ scale for text-on-surface contrast.
  • Palette Generation: Generates palettes targeting specific Lc bands for consistent readability.
  • Code Review: Flags contrast picks using WCAG 2.x as the primary model instead of APCA.
  • Use Case: When designing a user interface, use this Skill to check the contrast of text elements against their background to ensure accessibility.

Quick Start

Generate a color with Lc 75 contrast against a white background using the apca-contrast skill.

Dependency Matrix

Required Modules

apcach

Components

scriptsreferences

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: apca-contrast
Download link: https://github.com/thrillmade/agent-skills/archive/main.zip#apca-contrast

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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