The moon is essentially grey… no colour
This quote from astronaut Jim Lovell on board Apollo 9 was rather a stark reminder of the reality of space. No colour. We are so used to the colour of life on earth, the words Lovell spoke when first seeing the moon close up highlighted the truth that without light there is no colour and as the moon only reflects about 13 percent of light from the sun it is, in reality not colourful.
…or made of green cheese