Well, if you are apparently ignorant like myself you would say “White” or maybe “Shades of Grey”. This US Government website has a kind of “Google Moon” app which uses photographs from the 1994 Clementine project – which was a satellite sent to The Moon to capture images of its surface. http://pdsmaps.wr.usgs.gov/PDS/public/explorer/html/moonpick.htm Choose the 2nd option “Natural color” and then click on an area of The Moon to zoom in. There’s plenty of Brown there, and you can see quite a lot of Blue too.
I am curious though as to why during Apollo 8 when asked what The...