Colors-LE
Extract every color in a codebase, and say which ones are not in your palette
No editor in the loop? npx -y colors-le-mcp runs the same engine as an MCP server, so an agent can call extract_colors with nothing else installed, and cargo install colors-le puts the same check in a terminal. Every way to install it.
Overview
What Colors-LE does
Design systems drift one hard-coded hex at a time. Colors-LE extracts every color from a stylesheet, template or component file — hex, rgb/rgba, hsl/hsla, the CSS Color 4 functions (oklch, oklab, lab, lch, hwb, color()) and named colors — then analyses the result: distribution, clusters of near-duplicates, and contrast ratios against WCAG AA and AAA. It reads CSS, SCSS, LESS, Stylus, HTML, JavaScript, TypeScript and SVG.
What people use it for
Palette auditing
Every hex, rgb()/rgba(), hsl()/hsla(), oklch(), lab(), color() and named color across stylesheets, markup and code.
Design-system review
Analyse distribution, cluster similar colors, and spot near-duplicates.
Accessibility checks
Contrast ratios against WCAG AA and AAA via the Validate command.
Palette
11 commands
Open the command palette and type the name. Nothing is bound to a shortcut by default — the editor's keymap is the user's, not ours.
colors-le.showPositions: Show the line and column of each color. Off by default.
- Extract Colors
colors-le.extractColors - Extract Colors from Workspace
colors-le.extractWorkspace - Extract Colors from Folder
colors-le.extractFolder - Analyze Colors
colors-le.analyze - Convert Colors
colors-le.convert - Filter Colors
colors-le.filter - Validate Colors
colors-le.validate - Deduplicate Colors
colors-le.postProcess.dedupe - Sort Colors
colors-le.postProcess.sort - Open Settings
colors-le.openSettings - Help & Troubleshooting
colors-le.help
Install
Install Colors-LE
VS Code
ext install nolindnaidoo.colors-leOpen Quick Open (Cmd/Ctrl+P) and paste.
Cursor / Windsurf
cursor --install-extension nolindnaidoo.colors-leCursor, Windsurf, VSCodium and the other VS Code forks pull from Open VSX. The id is the same as on the Marketplace.
AI agents
npx -y colors-le-mcpRuns Colors-LE's engine as an MCP server, so an agent can call extract_colors with no editor involved. VS Code 1.101+ needs nothing — the extension registers it for you.
Channels
Where it ships
One engine, 5 places to get it. Copy the one for the editor you use.
Links
Where Colors-LE lives
- VS Code Marketplacecolors-le
- Open VSXfor Cursor, Windsurf and VSCodium
- npmcolors-le-mcp
- GitHubsource, issues, changelog
- MCP registryio.github.nolindnaidoo/colors-le
The family
The other 16
String-LEExtract every string in a codebase, so a person can read them
Numbers-LEExtract every hardcoded number in a codebase, so a person can check them
Paths-LEExtract every file path in a codebase, and say whether it still points at anything
URLs-LEExtract every URL in a codebase, with its protocol and exact position
Dates-LEExtract every date and timestamp, and the exact instant each one resolves to
Units-LEExtract every quantity with its unit, normalized, and refuse the ambiguous ones by name
IDs-LEExtract every UUID, ULID, NanoID, ObjectId and Snowflake, and decode the time inside
IPs-LEExtract every IP address, CIDR block and MAC, normalized and classified by scope
Regex-LEFind every regex in a codebase, and report which can be driven into catastrophic backtracking
Scrape-LECheck whether a page is scrapeable before the scraper is written, and say when it cannot tell
Versions-LEFind where one dependency is constrained differently across a repository's manifests
i18n-LEIdentify the i18n library a project uses, then audit its catalogs by that library's rules
DecisionLintLint Jev and Luna questions before they are sent: the questions you write for TypeSafe's Jev, OpenAI's Decisions API (gpt-6-luna) or any platform that serves one, as you type, with no API key and no network calls. An optional command asks the model itself to check a file
Secrets-LEFind hardcoded credentials in a codebase, and never print one into the report
EnvSync-LECompare the dotenv files in a tree, and say which keys are missing from which
Unicode-LEFind the Unicode that hides meaning — bidi controls, invisibles, homoglyphs, mixed scripts