← Back to Skills Marketplace
Colorlab
by
bytesagain3
· GitHub ↗
· v3.0.0
· MIT-0
325
Downloads
0
Stars
1
Active Installs
8
Versions
Install in OpenClaw
/install colorlab
Description
Convert colors and generate palettes with WCAG contrast checks. Use when building palettes, converting hex/RGB, checking accessibility.
README (SKILL.md)
ColorLab — Color Tool
Convert colors, generate palettes, check WCAG contrast ratios, and find closest CSS color names. Uses printf and awk for calculations, with ANSI 24-bit color swatches in terminal output.
Commands
| Command | Description |
|---|---|
hex-to-rgb \x3Chex> |
Convert hex color to RGB values |
rgb-to-hex \x3Cr> \x3Cg> \x3Cb> |
Convert RGB values (0-255) to hex |
contrast \x3Chex1> \x3Chex2> |
Calculate WCAG 2.0 contrast ratio with AA/AAA pass/fail ratings |
palette \x3Chex> [count] |
Generate lighter and darker variants of a color (default: 5 each direction) |
random [count] |
Generate random colors with hex and RGB values (default: 1) |
name \x3Chex> |
Find the closest named CSS color (from ~50 common colors) |
Examples
# Convert hex to RGB
colorlab hex-to-rgb "#FF5733" # → rgb(255, 87, 51)
# Convert RGB to hex
colorlab rgb-to-hex 255 87 51 # → #FF5733
# Check contrast for accessibility
colorlab contrast "#FFFFFF" "#000000"
# → 21.00:1, WCAG AA/AAA all pass
# Generate a palette
colorlab palette "#3498db" 3
# → Shows 3 darker + base + 3 lighter variants with color swatches
# Random colors
colorlab random 5
# Find closest CSS color name
colorlab name "#e74c3c" # → Crimson
Notes
- Hex colors accept
#prefix (optional) and 3-digit shorthand (#F00→#FF0000) - WCAG contrast checks report AA/AAA compliance for normal and large text
- Palette output includes ANSI 24-bit color swatches (requires a modern terminal)
- Color naming uses Euclidean distance in RGB space against ~50 common CSS color names
Usage Guidance
This skill appears coherent and local-only: it bundles a bash script that performs color math and prints results. Before installing, you may (1) inspect scripts/script.sh yourself (it is short and readable), (2) run it in a restricted environment or container if you prefer, and (3) note that ANSI 24-bit swatches require a modern terminal. No credentials or network access are requested.
Capability Analysis
Type: OpenClaw Skill
Name: colorlab
Version: 3.0.0
The ColorLab skill is a legitimate utility for color conversion, WCAG contrast checking, and palette generation. The bash script (scripts/script.sh) uses standard tools like awk and printf for mathematical calculations and color formatting without any evidence of data exfiltration, malicious execution, or prompt injection.
Capability Assessment
Purpose & Capability
Name/description match the provided SKILL.md and the included scripts/script.sh implements hex↔RGB conversion, WCAG contrast calculation, palette generation, random colors, and nearest CSS name lookup — all expected for a color tool.
Instruction Scope
SKILL.md instructs local CLI commands and examples. The runtime script only reads its arguments, performs local calculations (awk/printf), and prints output (including ANSI swatches). It does not read unrelated files or environment variables.
Install Mechanism
No install spec (instruction-only with a bundled script). No downloads, package installs, or archive extraction are present — lowest-risk install profile.
Credentials
No required environment variables, credentials, or config paths. The script does not access or exfiltrate secrets or external services.
Persistence & Privilege
Skill is not always-enabled, has no special persistence or system-wide configuration changes, and does not modify other skills or agent settings.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install colorlab - After installation, invoke the skill by name or use
/colorlab - Provide required inputs per the skill's parameter spec and get structured output
Version History
v3.0.0
v3.0.0: Complete rewrite with real functionality.
v2.0.1
update
v2.0.0
v2.5 standard: Use-when desc, homepage, source, security fix
v1.0.4
retry-fix-token
v1.0.3
old template -> domain-specific v2.0.0
v1.0.2
Quality upgrade
v1.0.1
Quality upgrade: custom functionality
v1.0.0
Initial release
Metadata
Frequently Asked Questions
What is Colorlab?
Convert colors and generate palettes with WCAG contrast checks. Use when building palettes, converting hex/RGB, checking accessibility. It is an AI Agent Skill for Claude Code / OpenClaw, with 325 downloads so far.
How do I install Colorlab?
Run "/install colorlab" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Colorlab free?
Yes, Colorlab is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Colorlab support?
Colorlab is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Colorlab?
It is built and maintained by bytesagain3 (@bytesagain3); the current version is v3.0.0.
More Skills