Color Audit
rome-os/rome
Audit a design system's color palette against measurable color-science disciplines — WCAG/APCA contrast of declared token pairs, perceptual (OKLCH) ramp uniformity, color-blindness safety of…
Color systems for digital products. An agent skill from Lily-404/blog.
Install Better Colors
$ npx skills add Lily-404/blog --skill better-colors -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Lily-404/blog better-colors --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/better-colors .claude/skills/better-colors && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .claude/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colorsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Lily-404/blog --skill better-colors -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Lily-404/blog better-colors --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/better-colors .agents/skills/better-colors && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .agents/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Lily-404/blog --skill better-colors -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Lily-404/blog better-colors --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/better-colors .cursor/skills/better-colors && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .cursor/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Lily-404/blog.git --path .agents/skills/better-colors--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Lily-404/blog --skill better-colors -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Lily-404/blog better-colors --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/better-colors .gemini/skills/better-colors && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .gemini/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Lily-404/blog better-colorsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Lily-404/blog --skill better-colors -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/better-colors .github/skills/better-colors && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .github/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Lily-404/blog --skill better-colors -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Lily-404/blog better-colors --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Lily-404/blog.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/better-colors .opencode/skills/better-colors && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "better-colors" agent skill from https://github.com/Lily-404/blog/tree/main/.agents/skills/better-colors into .opencode/skills/better-colors/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "better-colors", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
better-colors- GitHub stars
- 151
- Used in
- 3 other repos
- Token cost
- ~2k tokens
- SKILL.md length
- 1,140 words
- Files
- 8
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- None found
At a glance
Color systems for digital products. An agent skill from Lily-404/blog.
- Extending a palette
- SKILL.md covers Match the project's color system, A system is ramps, not colors, Every step has a job and Name primitives by hue,…, plus 8 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Theming light and dark appearances
What it does
Better Colors is an agent skill from Lily-404/blog. Color systems for digital products. Use when creating or extending a palette, theming light and dark appearances, or auditing the colors in a codebase. Triggers on color palette, palette generation, color ramp, brand color, accent color, gray palette, status colors, color tokens, token naming, theming, dark mode colors, contrast ratio, APCA, gamut, display p3, oklch, color conversion, gradients, color meaning, increased contrast.
Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files (for example `agents/openai.yaml`, `color-formats.md` and `color-usage.md`).
It sits in Frontend & Design, covering Theming and dark mode and Accessibility.
When your agent uses it
- Extending a palette
- Theming light and dark appearances
- Auditing the colors in a codebase
- Palette generation
Example prompts
- “/better-colors”
What it can do on your machine
Read from SKILL.md and the folder at commit cce7f29. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Better Colors loads about 2k tokens when it runs. Until then it costs about 112 tokens; SKILL.md has 1,140 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,140 words (~1,975 tokens).
“A color system is a small set of ramps, named by role and verified against the backgrounds they actually render on. Most color bugs are system bugs. A value picked in isolation, a token borrowed because it looked right, a…”
- name
- better-colors
Files
SKILL.md and 7 other files in .agents/skills/better-colors of Lily-404/blog.
- SKILL.md
- agents/openai.yaml
- color-formats.md
- color-usage.md
- contrast.md
- palette-generation.md
- palette-structure.md
- token-naming.md
Open the folder on GitHubat commit cce7f29
Used in 3 other repositories
We found 5 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in Lily-404/blog, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Better Colors next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Better Colors this skillLily-404/blog | 151 | 3 repos | ~2k | Automated safety check: Pass | None | |
| Color Auditrome-os/rome | 748 | — | ~2.7k | Automated safety check: Pass | MIT | |
| Ant Designkqcoxn/MaaPipelineEditor | 408 | 1 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Better Colorstrycompai/crm | 11k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Data-Dense Dashboard Designerplugin87/ux-ui-agent-skills | 1.6k | — | ~2.6k | Automated safety check: Pass | MIT | |
| Material Design 3 UI/UX Guideskydashnet/material-design-3-ui-skill | 138 | — | ~3k | Automated safety check: Pass | MIT |
Similar skills
Ant Design
kqcoxn/MaaPipelineEditor
Decision guide for antd 6.x, Ant Design Pro 5/ProComponents, Ant Design X v2, and the offline @ant-design/cli.
Better Colors
trycompai/crm
OKLCH color space and color usage for web projects. An agent skill from trycompai/crm.
Data-Dense Dashboard Designer
plugin87/ux-ui-agent-skills
Lays out dense analytics or trading-terminal screens in banded sections with hand-drawn SVG charts, instead of a wall of identical stat cards.
Material Design 3 UI/UX Guide
skydashnet/material-design-3-ui-skill
Guides designing, reviewing or implementing interfaces that follow Google's Material Design 3 system: semantic tokens, component states, adaptive layout and accessibility.
UI Design System
try-works/role-model
React UI component systems with TailwindCSS + Radix + shadcn/ui.
More from Lily-404/blog
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Better Typography
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Web typography. An agent skill from Lily-404/blog.
Better Accessibility
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Accessibility engineering for product interfaces. An agent skill from Lily-404/blog.
Better Layout
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Layout structure for web interfaces. An agent skill from Lily-404/blog.
Interface Review
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Interface review of a change rather than a screen: uncommitted work, the current branch, or a pull request.
Better Interface
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Cross-discipline interface review. An agent skill from Lily-404/blog.
Related
Categories
Questions about Better Colors
What does Better Colors do?
Color systems for digital products. An agent skill from Lily-404/blog. Better Colors is an agent skill from Lily-404/blog. Color systems for digital products.
When should I use Better Colors?
Better Colors fits situations like: extending a palette; theming light and dark appearances; auditing the colors in a codebase; palette generation.
How do I install Better Colors in Claude Code?
Run `npx skills add Lily-404/blog --skill better-colors -a claude-code`. Or copy the skill folder (.agents/skills/better-colors in Lily-404/blog) into .claude/skills/better-colors in your project. Claude Code loads it when a task matches its description.
How do I install Better Colors in Codex?
Run `npx skills add Lily-404/blog --skill better-colors -a codex`. Or copy the skill folder (.agents/skills/better-colors in Lily-404/blog) into .agents/skills/better-colors in your project. Codex loads it when a task matches its description.
Can I use Better Colors in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Lily-404/blog --skill better-colors -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/better-colors, .gemini/skills/better-colors, .github/skills/better-colors and .opencode/skills/better-colors in your project.
What does Better Colors need to run?
SKILL.md names no scripts, command-line tools or credentials: Better Colors is instructions for the agent only.
Does Better Colors access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Better Colors safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Better Colors use?
No licence was found for Better Colors or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Better Colors use?
About 2k tokens (SKILL.md is roughly 7.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Better Colors?
Skills that share tags, products or a category with Better Colors: Color Audit (rome-os/rome, 748 stars), Ant Design (kqcoxn/MaaPipelineEditor, 408 stars), Better Colors (trycompai/crm, 11k stars) and Data-Dense Dashboard Designer (plugin87/ux-ui-agent-skills, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Better Colors?
Lily-404 (a GitHub user) maintains it in Lily-404/blog, which has 151 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on September 23, 2026.
Source: Lily-404/blog on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.