This question is biased. From the perspective of geomantic omen, if black is used as the color tone of a large area such as floor or ceiling, it will be extremely cloudy. There are two kinds of black roofs that can be seen at ordinary times. One is a temple (it is rarely used now, and the roof of the temple is decorated even if it is black), and the other is a person who is extremely sunny. There are very few such people, and there is basically no need to consider them.
So I suggest you change the color. In addition, a wide range of red is extremely sunny, so don't use it, for the same reason. )