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oklch-color-space

Generate OKLCH colors meeting APCA contrast targets for design tokens.

1|Updated May 15, 2026
Search Tags:#contrast#color space#OKLCH#palette#design token
One-click install
npx skills add https://github.com/thrillmade/agent-skills --skill oklch-color-space
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: oklch-color-space
Source: https://github.com/thrillmade/agent-skills/tree/main/skills/oklch-color-space
Command: npx skills add https://github.com/thrillmade/agent-skills --skill oklch-color-space

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires apcach, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps designers and developers pick and compose color values with precision and consistency, adhering to accessibility standards and design systems.

Core Features & Use Cases

  • OKLCH Color Space: Names OKLCH ranges, hue-angle naming, gamut mapping rules, and inverse-composition for guaranteed contrast.
  • Contrast Target Composing: Generates colors that meet specific APCA Lc targets.
  • Use Case: When creating a design-token system that requires a color to be paired with a known background at a specific contrast level.

Quick Start

Use the oklch-color-space skill to generate a foreground color that meets the contrast target Lc 75 against a near-white background at hue 220.

Frequently Asked Questions about oklch-color-space

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate an OKLCH color that meets a specific APCA contrast target?▼

To generate an OKLCH color for a specific APCA contrast target, you use inverse-composing to calculate the exact lightness needed. This ensures the resulting foreground color mathematically meets contrast compliance like Lc 75 against a known background.

What is OKLCH gamut mapping and when do I need it for design tokens?▼

OKLCH gamut mapping translates colors from the wide OKLCH color space into displayable sRGB or Display P3 ranges. You need it when building design token systems to prevent color clipping and ensure visual consistency across different screen technologies.

How do I build a consistent color palette using the OKLCH color space?▼

Building a consistent OKLCH color palette involves defining hue angles and systematically adjusting lightness and chroma values. This method maintains perceptual uniformity across your design tokens, ensuring colors appear visually balanced and harmonized.

Do I need to understand APCA contrast and chroma harmonization to use OKLCH?▼

Yes, you need prerequisite knowledge of APCA contrast calculations and chroma harmonization. This Skill relies on the APCACH dependency to perform inverse-composition and guarantee that generated colors meet accessibility contrast targets.

What is the best way to ensure design token colors meet accessibility contrast standards?▼

The best way to ensure design token colors meet accessibility standards is using a contrast target composing workflow. By inputting your target contrast level like APCA Lc 75 and a known background, the system calculates the exact OKLCH foreground color required.

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