def modify_color(hsbk, **kwargs):
    """
    Helper function to make new colors from an existing color by modifying it.

    :param hsbk: The base color
    :param hue: The new Hue value (optional)
    :param saturation: The new Saturation value (optional)
    :param brightness: The new Brightness value (optional)
    :param kelvin: The new Kelvin value (optional)
    """
    return hsbk._replace(**kwargs)