Find all the colours in a page.

get-colours-in-page.js

function rgbStrToHex(str){
    function rgbToHex(r,g,b){
        var bin = r << 16 | g << 8 | b;
        return '#'+(function(h){
            return new Array(7-h.length).join("0")+h
        })(bin.toString(16).toUpperCase())
    }
    
    if(!str){
        return;
    }
    var octets = str.match(/(\d+),\s*(\d+),\s*(\d+)/);
    if(!octets){
        return;
    }
    return rgbToHex(octets[1],octets[2],octets[3]);
}

var colors = {};

function addColorStr(color){
    if(color){
        colors[color] = rgbStrToHex(color);
    }
}
$('*').each(function(i,$i){
    $i = $($i);
    addColorStr($i.css('color'));
    addColorStr($i.css('background-color'));
    addColorStr($i.css('border-top-color'));
    addColorStr($i.css('border-right-color'));
    addColorStr($i.css('border-left-color'));
    addColorStr($i.css('border-bottom-color'));
});

var count = 0;
for(var color in colors){
    console.log("%c "+color+' - '+colors[color],'color:'+colors[color]+';text-shadow:1px 1px 1px rgba(0,0,0,.1);');
    count++;
}
console.log('Found',count,'unique colours in this page');