As a retired Vietnam combat medic veteran that seen two tours of duty in country and with my Marines out on patrol in the jungle almost daily, I can answer that by the main coarse of the C-rations we had to eat. Ha ha. I'm glad our troops now have MRE's.
Brown
Brown
brown
If you mix red with dark brown you get a maroon color. If you mix dark brown with a forest green you cab get an olive green.
Dark Red (of course)
A dark brown with hints of green in it !!!!!!
It will become a swampy brown.
Pink and brown mixed together make a tan color. How light or dark the tan is depends on the shade of brown and pink used and how much of each is mixed.
A brownish purple. In equal parts, a muddy brown.
It makes a really dark black color
Dark brown
Dark red almost a burned red