Agent skill

Color Harmony Engine

A color harmony engine for designing interior color palettes.

Apache-2.0Auto-check passedFrontend & Design

Install Color Harmony Engine

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .claude/skills/color-harmony-engine && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .claude/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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

$skill-installer install https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine

Type 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.

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .agents/skills/color-harmony-engine && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .agents/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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.

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .cursor/skills/color-harmony-engine && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .cursor/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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

$ gemini skills install https://github.com/revfactory/harness-100.git --path en/77-space-concept-board/.claude/skills/color-harmony-engine

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .gemini/skills/color-harmony-engine && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .gemini/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine

Installs 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).

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .github/skills/color-harmony-engine && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .github/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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.

skills CLI

$ npx skills add revfactory/harness-100 --skill color-harmony-engine -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install revfactory/harness-100 color-harmony-engine --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/en/77-space-concept-board/.claude/skills/color-harmony-engine .opencode/skills/color-harmony-engine && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "color-harmony-engine" agent skill from https://github.com/revfactory/harness-100/tree/main/en/77-space-concept-board/.claude/skills/color-harmony-engine into .opencode/skills/color-harmony-engine/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "color-harmony-engine", 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: color-harmony-engine
GitHub stars: 1.3k
Token cost: ~1.2k tokens
SKILL.md length: 205 words
Files: 1
Skills in repo: 96
Repo updated: Mar 22, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

A color harmony engine for designing interior color palettes.

Tasks that involve Theming and dark mode
SKILL.md covers Basic Palette Formulas, Interior Style Color Palettes, Color Psychology — Application… and Color Strategy by Space Size, plus 2 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Color Harmony Engine is an agent skill from revfactory/harness-100. A color harmony engine for designing interior color palettes. The 'moodboard-designer' and 'style-analyst' agents must use this skill's color theory, palette formulas, and style-specific palette database when composing color palettes and analyzing styles. Used for 'color palette design', 'color harmony', 'color psychology', etc. Furniture selection and budget management are outside this skill's scope.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Theming and dark mode. The licence is Apache-2.0.

When your agent uses it

Tasks that involve Theming and dark mode

Example prompts

“moodboard-designer”
“style-analyst”
“color palette design”
“/color-harmony-engine”

What it can do on your machine

Read from SKILL.md and the folder at commit 8e8d35c. 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 (its code samples are markdown).
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

Color Harmony Engine loads about 1.2k tokens when it runs. Until then it costs about 106 tokens; SKILL.md has 205 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~106
When it runs · the whole SKILL.md, loaded when a task matches: ~1.2k

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

The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 205 words, ~1,169 tokens.

Download SKILL.mdSave it as .claude/skills/color-harmony-engine/SKILL.md (or your agent's skills folder).

name: color-harmony-engine
description: A color harmony engine for designing interior color palettes. The 'moodboard-designer' and 'style-analyst' agents must use this skill's color theory, palette formulas, and style-specific palette database when composing color palettes and analyzing styles. Used for 'color palette design', 'color harmony', 'color psychology', etc. Furniture selection and budget management are outside this skill's scope.

Color Harmony Engine — Interior Color Harmony Engine

Provides systematic color theory, palette formulas, and psychological effects for interior design.

Basic Palette Formulas

60-30-10 Rule

60% — Dominant: Walls, ceiling, large furniture
30% — Secondary: Fabric, curtains, rugs, small furniture
10% — Accent: Cushions, accessories, artwork

Example (Scandinavian):
  60% White (#FAFAFA)
  30% Light Gray (#D5D5D5) + Natural Wood
  10% Mustard Yellow (#E8B730)

Color Harmony Types

Type	Description	Feel	Suitable Spaces
Monochromatic	Value/saturation shifts of a single hue	Unity, sophistication	Bedroom, study
Analogous	Adjacent hues (30 degrees on color wheel)	Natural, comfortable	Living room, cafe
Complementary	Opposite hues (180 degrees)	Bold, dynamic	Accent wall, kids' room
Split-complementary	Adjacent to complement (150 degrees)	Harmony + energy	Living room, dining
Triadic	3 hues at 120 degree intervals	Balanced energy	Kids' room, playroom
Neutral	Achromatics + natural tones	Refined, calm	Minimal spaces

Interior Style Color Palettes

Scandinavian

Dominant: White #FFFFFF, Off-White #F5F0EB
Secondary: Light Gray #D5D5D5, Natural Oak #C4A574
Accent: Mustard #E8B730, Dusty Pink #D4A5A5, Sage Green #8FA98C
Materials: Solid wood, linen, wool

Modern

Dominant: White #FFFFFF, Cool Gray #9E9E9E
Secondary: Charcoal #333333, Black #1A1A1A
Accent: Electric Blue #2979FF, Red #D32F2F
Materials: Metal, glass, high-gloss

Natural/Organic

Dominant: Ivory #FFFFF0, Beige #F5F0DC
Secondary: Terracotta #C2703E, Olive Green #6B8E23
Accent: Mud Brown #6F4E37, Rust #B7410E
Materials: Rattan, hemp, cotton, earthenware

Mid-Century Modern

Dominant: White #FAFAFA, Warm Wood #A67B5B
Secondary: Teal #008080, Olive #808000
Accent: Orange #FF6D00, Gold #FFD700
Materials: Walnut, leather, velvet

Industrial

Dominant: Concrete Gray #B0B0B0, Dark Gray #4A4A4A
Secondary: Black #1A1A1A, Dark Brown #3E2723
Accent: Orange #E65100, Amber #FFAB00
Materials: Exposed brick, steel, aged wood

Color Psychology — Application by Space

Color Family	Psychological Effect	Suitable Spaces	Unsuitable Spaces
Blue	Stability, focus, trust	Study, bedroom, bathroom	Dining room (suppresses appetite)
Green	Relaxation, nature, balance	Living room, bedroom, balcony	-
Yellow	Brightness, energy, creativity	Kitchen, kids' room, entryway	Bedroom (overstimulating)
Red	Passion, appetite, energy	Dining room, accent wall	Bedroom, study
Purple	Luxury, mystery, creativity	Bedroom, study	Kitchen, living room
Orange	Warmth, sociability, energy	Living room, dining area	Bedroom
Neutral	Stability, refinement, openness	All spaces	-

Color Strategy by Space Size

Small spaces (<330 sq ft):
  - Light-toned dominant color (creates sense of expansion)
  - Ceiling color = wall color or lighter
  - Minimize accent colors (prevents visual clutter)
  - Use mirrors (visual expansion)

Large spaces (>660 sq ft):
  - Medium to dark tones are viable (creates coziness)
  - Color zoning by area is possible
  - Bold accent colors can be used
  - Texture variation adds depth

High ceilings:
  - Paint ceiling 1-2 shades darker than walls (cozier feel)

Low ceilings:
  - Paint ceiling lighter than walls (appears taller)
  - Vertical stripe patterns

Color Palette Output Format

markdown

## Color Palette

**Style**: [Style Name]
**Harmony type**: [Monochromatic/Analogous/Complementary, etc.]

| Role | Color Name | HEX | Application | Ratio |
|------|-----------|-----|-------------|-------|
| Dominant | Off-White | #F5F0EB | Walls, ceiling | 60% |
| Secondary 1 | Warm Gray | #B8AFA6 | Sofa, curtains | 20% |
| Secondary 2 | Natural Oak | #C4A574 | Table, shelving | 10% |
| Accent | Sage Green | #8FA98C | Cushions, planters | 10% |

References

Pantone and NCS color system references
Detailed palette combinations: see references/color-palettes.md

Files

Just SKILL.md in en/77-space-concept-board/.claude/skills/color-harmony-engine of revfactory/harness-100.

Open the folder on GitHubat commit 8e8d35c

Compare with similar skills

Color Harmony Engine 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.

Color Harmony Engine compared with similar skills
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Color Harmony Engine this skillrevfactory/harness-100	1.3k	—	~1.2k	Automated safety check: Pass	Apache-2.0	6 mo ago
Impeccablebestofjs/bestofjs	3.1k	27 repos	~2.6k	Automated safety check: Pass	MIT	4 days ago
Figma Design System Builderwarpdotdev/warp	65k	2 repos	~4.4k	Automated safety check: Pass	AGPL-3.0	today
Tailwindcss Developmentanonaddy/anonaddy	4.9k	10 repos	~865	Automated safety check: Pass	MIT	2 days ago
UI StylingOhh-889/skyroc	795	13 repos	~2.5k	Automated safety check: Pass	MIT	1 mo ago
MCP Developmentcoollabsio/coolify	63k	1 repos	~949	Automated safety check: Pass	MIT	yesterday

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Questions about Color Harmony Engine

What does Color Harmony Engine do?

A color harmony engine for designing interior color palettes. Color Harmony Engine is an agent skill from revfactory/harness-100. A color harmony engine for designing interior color palettes.

When should I use Color Harmony Engine?

Color Harmony Engine fits situations like: tasks that involve Theming and dark mode.

How do I install Color Harmony Engine in Claude Code?

Run `npx skills add revfactory/harness-100 --skill color-harmony-engine -a claude-code`. Or copy the skill folder (en/77-space-concept-board/.claude/skills/color-harmony-engine in revfactory/harness-100) into .claude/skills/color-harmony-engine in your project. Claude Code loads it when a task matches its description.

How do I install Color Harmony Engine in Codex?

Run `npx skills add revfactory/harness-100 --skill color-harmony-engine -a codex`. Or copy the skill folder (en/77-space-concept-board/.claude/skills/color-harmony-engine in revfactory/harness-100) into .agents/skills/color-harmony-engine in your project. Codex loads it when a task matches its description.

Can I use Color Harmony Engine 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 revfactory/harness-100 --skill color-harmony-engine -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/color-harmony-engine, .gemini/skills/color-harmony-engine, .github/skills/color-harmony-engine and .opencode/skills/color-harmony-engine in your project.

What does Color Harmony Engine need to run?

SKILL.md names no scripts, command-line tools or credentials: Color Harmony Engine is instructions for the agent only.

Does Color Harmony Engine 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 Color Harmony Engine 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 Color Harmony Engine use?

Color Harmony Engine is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Color Harmony Engine use?

About 1.2k tokens (SKILL.md is roughly 4.7k 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 Color Harmony Engine?

Skills that share tags, products or a category with Color Harmony Engine: Impeccable (bestofjs/bestofjs, 3.1k stars), Figma Design System Builder (warpdotdev/warp, 65k stars), Tailwindcss Development (anonaddy/anonaddy, 4.9k stars) and UI Styling (Ohh-889/skyroc, 795 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Color Harmony Engine?

revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,293 GitHub stars. The repository holds 96 skills in this directory. The repository was last updated on March 22, 2026.

Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Color Harmony Engine

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Color Harmony Engine — Interior Color Harmony Engine

Basic Palette Formulas

60-30-10 Rule

Color Harmony Types

Interior Style Color Palettes

Scandinavian

Modern

Natural/Organic

Mid-Century Modern

Industrial

Color Psychology — Application by Space

Color Strategy by Space Size

Color Palette Output Format

References

Files

Compare with similar skills

Similar skills

More from revfactory/harness-100

Related

Questions about Color Harmony Engine