def METHOD_NAME(self):
    """
    Test :func:`colour.notation.hexadecimal.HEX_to_RGB` definition domain
    and range scale support.
    """
    HEX = "#74070a"
    RGB = HEX_to_RGB(HEX)
    d_r = (("reference", 1), ("1", 1), ("100", 100))
    for scale, factor in d_r:
        with domain_range_scale(scale):
            np.testing.assert_array_almost_equal(
                HEX_to_RGB(HEX), RGB * factor, decimal=2
            )