better-colors

better-colors is a skill for Claude Code, Codex from compozy/compozy. It costs 103 tokens per session (1,920 once invoked), scanned A, original, MIT.

Guidance for choosing and working with web colours using OKLCH, a colour format whose lightness, vividness, and hue are easier to adjust predictably. It covers conversions, palettes, contrast, display limits, Tailwind CSS version 4, and meaningful colour tokens.

In plain words
What is it for?
Use it when converting colour values, creating light or dark palettes, checking contrast, defining design tokens, or configuring OKLCH colours in Tailwind CSS 4.
Why use it?
It helps keep colour choices consistent and readable instead of adjusting colours by trial and error. It also explains how to handle colours that some screens cannot display and how to check accessibility contrast.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/compozy/compozy/better-colors
Any agent
npx skills add compozy/compozy --skill better-colors
Clone the repo
git clone --depth 1 https://github.com/compozy/compozy

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for better-colors

README.md
[![agentmods](https://agentmods.dev/badge/skills/compozy/compozy/better-colors.svg)](https://agentmods.dev/skills/compozy/compozy/better-colors)
Your own site
<a href="https://agentmods.dev/skills/compozy/compozy/better-colors"><img src="https://agentmods.dev/badge/skills/compozy/compozy/better-colors.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,920 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00103 $0.01920
Opus 5 $0.00051 $0.00960
Sonnet 5 $0.00021 $0.00384
Haiku 4.5 $0.00010 $0.00192

Measured 3d ago against content hash ed532c387bb9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

better-colors scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/better-colors/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OKLCH Colors

OKLCH is a perceptually uniform color space where lightness, chroma, and hue are useful design controls. Use it when the project already uses OKLCH, when creating a new color system, or when the user asks for conversion or palette work. Otherwise preserve the project's established tokens and notation: a consistent hex or RGB token system is better than introducing a second color representation for an isolated fix. To explore interactively, visit oklch.fyi.

Quick Reference

Category When to use Reference
Conversion Hex/rgb/hsl to oklch color-conversion.md
Palettes Generate scales, multi-hue, dark mode palette-generation.md
Contrast APCA/WCAG checks, reporting failures, fixing on request accessibility-contrast.md
Gamut & Tailwind P3 fallbacks, @theme scales, gamut clamping gamut-and-tailwind.md
Usage Semantic tokens, one meaning per color, primary-action emphasis, appearance variants color-usage.md

Core Principles

1. Use a Perceptual Color Space

  • Respect the existing system. Do not convert notation merely because this skill was loaded. Reuse the project's semantic tokens and authoring format unless the task includes a color-system migration.
  • Perceptual uniformity. Equal L steps = equal brightness. oklch(0.5 ...) is visually mid. HSL's lightness: 50% varies wildly by hue.
  • Stable hue. HSL blue shifts toward purple as lightness changes. OKLCH hue stays constant across the full lightness range.
  • Independent chroma. Chroma is an absolute measure of colorfulness that doesn't depend on lightness. HSL saturation does.
  • Finite gamut. Not every oklch value maps to a displayable sRGB color. High-chroma values at certain hues will clip; gamut awareness is required.

2. Write and Format OKLCH Consistently

oklch(L C H)
oklch(L C H / alpha)

Read the full file on GitHub · 114 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 114 lines · 103 tokens per session scan A ed532c387bb9

Subscribe to this mod's changes

better-colors is a skill published in the GitHub repository compozy/compozy (2,711 stars, last pushed today), licensed MIT. It adds 103 tokens to every session and 1,920 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

brainstorming

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

obra/superpowers · 37 tokens

auto-perf-optimize

Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.

microsoft/vscode · 62 tokens

chat-perf

Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.

microsoft/vscode · 51 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens