Question

environment: JavaScript
object.style.color returns something like
"rgb(255,0,0)"
Is there another return format, like hex?

var colorvariable = document.getElementById('text1').style.color

Answer 1

If you set:

document.getElementById('text1').style.color = '#000';

It will return #000.

However, if you set:

document.getElementById('text1').style.color = 'rgb(0,0,0)';

It will return rgb(0,0,0), so this returned value depends on the value that was set.

You can use getComputedStyle to get the color in RGB format and then convert to HEX. See this code:

var hexChars = '0123456789ABCDEF';
var rgb = getComputedStyle(document.body).color.match(/\d+/g);
var r = parseInt(rgb[0]).toString(16);
var g = parseInt(rgb[1]).toString(16);
var b = parseInt(rgb[2]).toString(16);
var hex = '#' + r + g + b;