Should have gone with black and brown for colors. White would have problems similar to dark green: same color as neutral units, same color on minimap as selected units.
I think the addition of colors is great, but this is a fairly strong example of how there are actually not that many colors to choose from! While there are thousands of shades visible to the human eye, the upper limit of colors we can immediately tell the difference between is like 12.
Maybe they should make colors specific to teams: warm colors on team 1 and cool colors on team 2. This would make it very easy to add colors to the game, as telling the difference between colors, dark green and lime for example, won’t be as important.