What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

The colors themselves are already in the white light, and all the prism does is to separate them out. As he put it, "Light consists of Rays differently refrangible" [meaning refractable].

Ronald C. Stone, A New Method for Computing Differential Color Refraction, Publications of the Astronomical Society of the Pacific, Vol. 114, No. 800 (October 2002), pp. 1070-1086 ...

Some Coloradans have noticed rainbow clouds over the past few days? This is actually a rare phenomenon called "cloud ...

Jeff Waldstreicher, a meteorologist with NOAA's National Weather Service, provides this answer. Sunlight passing through raindrops causes rainbows via a process called refraction, which is the ...