Project: rehypejs/rehype-minify

Package: rehype-minify-meta-color@3.0.0

  1. Dependents: 0
  2. rehype plugin to minify theme-color and msapplication-TileColor meta elements
  1. unified 175
  2. plugin 132
  3. html 123
  4. rehype 89
  5. rehype-plugin 62
  6. minify 31
  7. mangle 31
  8. meta 9


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rehype plugin to minify color attributes.


What is this?

This package is a plugin that can minify the value of the content attribute of <meta> elements with a name attribute whose value is either theme-color or msapplication-TileColor, and thus represents a CSS color.

When should I use this?

You can use this plugin when you want to improve the size of HTML documents.


This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:

npm install rehype-minify-meta-color

In Deno with esm.sh:

import rehypeMinifyMetaColor from 'https://esm.sh/rehype-minify-meta-color@3'

In browsers with esm.sh:

<script type="module">
  import rehypeMinifyMetaColor from 'https://esm.sh/rehype-minify-meta-color@3?bundle'


On the API:

import {read} from 'to-vfile'
import {unified} from 'unified'
import rehypeParse from 'rehype-parse'
import rehypeStringify from 'rehype-stringify'
import rehypeMinifyMetaColor from 'rehype-minify-meta-color'


async function main() {
  const file = await unified()
    .process(await read('index.html'))


On the CLI:

rehype input.html --use rehype-minify-meta-color --output output.html

On the CLI in a config file (here a package.json):

 "rehype": {
   "plugins": [
+    "rehype-minify-meta-color",


This package exports no identifiers. The default export is rehypeMinifyMetaColor.


Minify color attributes. There are no options.


<meta name="theme-color" content="#0000ff">
<meta name="msapplication-TileColor" content="#ff0000">
<meta name="theme-color" content="#00f">
<meta name="msapplication-TileColor" content="red">


HTML is handled according to WHATWG HTML (the living standard), which is also followed by browsers such as Chrome and Firefox.

Syntax tree

The syntax tree format used is hast.


This package is fully typed with TypeScript.


Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 12.20+, 14.14+, and 16.0+. Our projects sometimes work with older versions, but this is not guaranteed.


As rehype works on HTML, and improper use of HTML can open you up to a cross-site scripting (XSS) attack, use of rehype can also be unsafe. Use rehype-sanitize to make the tree safe.


See contributing.md in rehypejs/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.


MIT © Titus Wormer