are you serious?, I do not mean this in a bad way at all, but you are a student of architecture and you do not know that red, green and blue are the primary colors and that when they are combined they for white?..well anyway - this is a great test…i like it a lot.
its like this, on the computer and on the system of colors that exists in the electronic world (computers, and everything that makes them) all colors mixed together make white
(red 255, blue 255 and greed 255 also)
and that is the physic and the way thing happen
in real life when you mix all colors (i mean real paint or colored trasnlusent papers) together you get black… if you have transparent materials of those three colors put them together close to each other and you’ll get something else than white…
that was the reason i asked for the white color…
Sorry i am not as smart as you…