public static function foreground($color)
    {
        list($red, $green, $blue) = str_split(substr($color, 1), 2);

        $red   = hexdec($red);
        $green = hexdec($green);
        $blue  = hexdec($blue);

        return ($red < 200 && $green < 100 && $blue < 200) ? self::WHITE : self::BLACK;
    }