def RGB(red, green, blue):
    """
    Given integer values of Red, Green, Blue, return a color string "#RRGGBB"
    :param red: (int) Red portion from 0 to 255
    :param green: (int) Green portion from 0 to 255
    :param  blue: (int) Blue portion from 0 to 255
    :return: (str) A single RGB String in the format "#RRGGBB" where each pair is a hex number.
    """
    return '#%02x%02x%02x' % (red, green, blue)