Here are a few thoughts, as I've studied this issue for many years. In fact I have a presentation I give on this subject as part of the ACM distinguished lecturer program and the IEEE Computer Society's distinguished visitor program. 1) There actually have been academic programs called computer science engineering, but the name never caught on.
The color black represents strength, seriousness, power, and authority. Black is a formal, elegant, and prestigious color. Authoritative and powerful, the color black can evoke strong emotions and too much black can be overwhelming. In heraldry, black is the symbol of grief.
Black symbolizes evil, emptiness, death, and dirtiness, but also power, dignity and strength. Since black symbolizes death, it is the color worn by many cultures in times of mourning. At the extreme opposite is white. This color symbolizes purity, sterility, innocence, and goodness, but also sterility in most cultures.