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lch-color-wheel

v0.4.1

Published

A wheel-style color picker based on CIE L*C*h color space.

Downloads

37

Readme

LCh Color Wheel

A wheel-style color picker based on CIE L*C*h color space.

Demo

Installation

npm

$ npm i lch-color-wheel
import { LchColorWheel } from 'lch-color-wheel'

CDN (jsDelivr)

<script src="https://cdn.jsdelivr.net/npm/[email protected]"></script>
<script>
  /* `window.LchColorWheel` object is available */
</script>

Download directly

lch-color-wheel.iife.min.js

Usage

// create a new color picker
var colorWheel = new LchColorWheel({
  // appendTo is the only required property. specify the parent element of the color wheel.
  appendTo: document.getElementById('my-color-picker-container'),

  // optional properties and default values.
  wheelDiameter: 200,
  wheelThickness: 20,
  handleDiameter: 16,
  drawsRgbValidityBoundary: false,

  onChange: function (colorWheel) {
    // the only argument is the LchColorWheel instance itself.
    // console.log("lch:", colorWheel.lch[0], colorWheel.lch[1], colorWheel.lch[2])
  },
})

// set color in LCH / RGB
colorWheel.lch = [32, 134, 306.2]
colorWheel.rgb = [0, 0, 255]

// get color in LCH / RGB
console.log('lch:', colorWheel.lch[0], colorWheel.lch[1], colorWheel.lch[2])
console.log('rgb:', colorWheel.rgb[0], colorWheel.rgb[1], colorWheel.rgb[2])

// please call redraw() after changing some appearance properties.
colorWheel.wheelDiameter = 400
colorWheel.wheelThickness = 40
colorWheel.handleDiameter = 32
colorWheel.redraw()

License

WTFPL

Sister Package

reinvented-color-wheel: HSV color wheel