How to extract r, g, b, a values from CSS color?

Question

What would be the easiest way to transform

$(\'#my_element\').css(\'backgroundColor\')

to object like this:

{ r: red_value,         


        

Answer 1

As seen here:

R = hexToR("#FFFFFF");
G = hexToG("#FFFFFF");
B = hexToB("#FFFFFF");

function hexToR(h) {return parseInt((cutHex(h)).substring(0,2),16)}
function hexToG(h) {return parseInt((cutHex(h)).substring(2,4),16)}
function hexToB(h) {return parseInt((cutHex(h)).substring(4,6),16)}
function cutHex(h) {return (h.charAt(0)=="#") ? h.substring(1,7):h}

This script basically takes each color pair from your hexcolor code (for example #F0556A) and switches it to a integer using parseInt with base 16 .