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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def closest_color(requested_color):
 """ Find closest color name for the request RGB tuple. """

    logging.disable(logging.DEBUG)
    colors = []
    for key, name in css3_hex_to_names.items():
        diff = color_diff(hex_to_rgb(key), requested_color)
        colors.append((diff, name))
    logging.disable(logging.NOTSET)
    min_diff, min_color = min(colors)

    return min_color