As much as I love this site, I've never been a huge fan of its map color schemes. Some of this is just a matter of taste, but I have pretty frequent trouble with the Versailles map in particular.
It's admittedly difficult to find 14 dissimilar colors that will work for both maps and units. It's even more difficult to choose colors that have some level of meaning for the countries, especially since so many nations have similar flags and military uniforms.
The current Versailles color scheme, however, has several pairs of colors that I find extremely difficult to distinguish between unless I'm staring at them side-by-side. Some of this seems to be that nearly all of the 7 minor power colors are just lighter tints of the 7 major power colors.
UPDATE: Proposal Withdrawn
I have some other ideas how to make units more distinct without such drastic color changes, so I'm tabling this for now.