def decimal_to_xyz(rgb):
    """
    Convert decimal format to xyz
    """
    red, green, blue = rgb[0], rgb[1], rgb[2]
    x = red * 0.649926 + green * 0.103455 + blue * 0.197109
    y = red * 0.234327 + green * 0.743075 + blue * 0.022598
    z = red * 0.0 + green * 0.053077 + blue * 1.035763
    return x, y, z
