"For you have come, and that was the purpose of my message. And here you will stay, Gandalf, and rest from journeys. For I am Saruman the Wise, Saruman Ring-Maker, Saruman of many colours!"
I looked then, and saw that his robes, which had seemed white, were not so, but were woven of all colours, and if he moved they shimmered and changed hue so the eye was bewildered.
“I liked white better,” I said. ‘”White!" he sneered. “It serves as a beginning. White cloth may be dyed. The white page may be overwritten; and the white light can be broken."
The Lord of the Rings