RedeyeVentures\GeoPattern\GeoPattern::rgbToHex PHP Method

    protected function rgbToHex($r, $g, $b)
    {
        $hex = "#";
        $hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);
        $hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);
        $hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);
        return $hex;
    }