Get the Delta-E from two hex color values
http://en.wikipedia.org/wiki/Color_difference
Implements the formulas from: http://www.easyrgb.com/index.php?X=MATH
Installation
npm install deltae
Usage
//Require the package var color = require('deltae');
var colorA = "#007ace"; var colorB = "#017acf"
//Get the color difference color.delta(colorA,colorB,function(delta){ console.log(delta); });
//You can also onvert rgb to XYZ
color.xyz(colorA, function(XYZ){ var X = XYZ.X; var Y = XYZ.Y; var Z = XYZ.Z; console.log(X+" "+Y+" "+Z); })
//Or CIE-Lab
color.lab(colorA,function(LAB){ var L = LAB.L; var a = LAB.a; var b = LAB.b; console.log(L+" "+a+" "+b); });