generate random color pair for paceholde.it

gistfile1.txt

function getPair(num) {
    var randColor = function(){
        var rnd = Math.random();
        var color = Math.floor(rnd * 16777215).toString(16);
        var oposite = Math.floor(16777215 - rnd * 16777215).toString(16);
        while (oposite.length < 6) {
            oposite = '0' + oposite;
        }
        return color +'/'+ oposite;
    }


    var txt = '',
        xx = 0;
    while (xx < num) {
        xx++;
        txt += randColor() + '\n';
    }
    return txt;
}

getPair(10);