To create the best option for a color scheme for 18 nations requires several things to think about.
First is to loose the thought that a certain nation should have a certain color because you are used to it or because it's your own personal asociation with it. Myself I tend to do that too. This works when you creat a game with only 9 civs or only the west map or only the east map.
Better is to look at the best positions on the map.
Now we have to take up the game as a whole. and that means 18 colors.
So I created a colorscheme without looking at the nations involved.
This is my first proposal for the new color scheme:
Please take avery good look on the system behind it.
It's not just 18 random colors.
NOTE: screen colors are never print colors. When you use a CMYK print press or single colored print press, colors may look even more different.
Most of the time, colors will appear a slight bit lighter and less bright when printed.
The key is:
1. The West set strictly uses black images/text on mainly lighter colors.
2. The East set striclty uses white images/text on mainly darker colors.
This is one way to distinguis West from East. Whenver for some reason two colors that look alike come close to eachtother, it's easier to tell them apart by just looking at the color of the images/text.
Next:
3. In the West set only, the 9 different colors are as far apart from eachother as possible, and mainly a lighter tint. I used 3 primary colors (red, yellow and blue) and 3 secondary colors (green, purple and orange) the 7th color is a mix of all 3 primary colors (brown) the 8th color is the color nicest to look at (blue for most people) and the 9th color is a shade of grey.
4. In the East set only, the 9 different colors are as far apart from eachother as possible. But now a darker tint. I used 3 primary colors (red, yellow and blue) and 3 secondary colors (green, purple and orange) the 7th color is a mix of all 3 primary colors (brown) the 8th color is the color nicest to look at (blue for most people) and the 9th color is a shade of grey.
5. In each set there are some colors that might look a little alike. (which is impossible to avoid). But the key is to place the starting base of these colors away from eachother.
(01 and 05) (03 and 09) (06 and 07) for West
(11 and 13) (10 and 15) for East
Using a map like this to do that:
6. Next up is to copy the starting position of each row from West to East.
That means, if Red (01) is most west on the West Map, than red (10) should be put most west on the East map.
7. Finally there might still be some colors in the same range that are place next to eachother. It could be nescesary to excahnge two color to get an even better result.
I use black and white for the barbarians. These should be different from any other tokens. A jolly roger is easy to tell apart anyway.
In my opinion this the only and best way to make 18 different players tell their own tokens apart from their neighbours.[/i]