colvertize
TypeScript icon, indicating that this package has built-in type declarations

0.1.0 • Public • Published

colvertize

GitHub Workflow Status npm version npm bundle size code coverage license dependency status

Overview

Colvertize allows to conveniently convert colors between different formats and can apply conversion functions (like color inversion) using function composition.

It is heavily based on the color implementation of the excellent darkreader

Usage

Installation:

npm i --save colvertize
# or 
yarn add colvertize

UMD support in browser:

<script type="text/javascript" src="https://unpkg.com/colvertize@0.1.0"></script>

Examples:

import { convert, RGBA } from 'colvertize';
 
convert('rebeccapurple', 'css-hex');
// -> '#663399'
convert('#123456', 'css-rgb');
// -> 'rgb(18, 52, 86)'
convert('#123456', 'css-hsl');
// -> 'hsl(210, 65%, 20%)'
convert('#123456', 'rgb');
// -> {'r': 18, 'g': 52, 'b': 86, 'a': 1}
convert('#123456', 'hsl');
// -> {'h': 210, 's': 0.653846153846154, 'l': 0.20392156862745098, 'a': 1}
 
 
// custom conversion functions
 
function invertColor(c: RGBA): RGBA {
  return {
    r: 255 - c.r,
    g: 255 - c.g,
    b: 255 - c.b,
    a: c.a,
  };
}
 
convert('#ffffff', 'css-hex', invertColor)
// -> '#000000'

This following built-in conversion functions are supported:

import {
  convert,
  invert,
  invertDarkLight,
  gammaCorrection,
  contrastBrightness
} from 'colvertize';
 
convert('#ff0000', 'css-hex', invert)
// -> '#00ffff'
 
// dark (default: black), light (default: white), and threshold (default: 0.179) are optional options
convert('#ffff00', 'css-hex', invertDarkLight({dark: '#111', light: '#eee'}))
// -> '#111111'
 
// factor (default: 2.2) is an optional option
convert('#773300', 'css-hex', gammaCorrection())
// -> '#b47b00'
 
// contrast (default: 1.0) and brightness (default: 0) are optional options
convert('#993300', 'css-hex', contrastBrightness({ contrast: 1.5 }))
// -> '#a60d00'

For more usage information checkout the tests

License

MIT

Readme

Keywords

none

Package Sidebar

Install

npm i colvertize

Weekly Downloads

908

Version

0.1.0

License

MIT

Unpacked Size

90 kB

Total Files

13

Last publish

Collaborators

  • phil-m