I just released a player colour mod and I already got a few comments with request. I think it would be quite lame to make a mod for every person that wants a different player colour so that's why I wrote this guide.

First thing you have to do is to find the playercolors.xml in your AoM:EE Folder. Mine is located here:
C:\Program Files (x86)\Steam\steamapps\common\Age of Mythology\data
Open it with a text editor and you will see a few lines of code and the first colour is defined like this:
<player num="0" color1="153 102 0" color2="153 102 0" color3="77 51 0"></player>
This is the "Gaia" player colour or "Mother Nature" The other player colours are the player number 1-12.

If you want to change a player's colour just change the values of the colours defined here.
Now this line of code has 3 colours that are defined in RGB. Every colour has it's own purpose.

Colour 1:
This is the player colour most people see as "The player colour" but it is slightly more complicated than this. This is the player colour of units that are alive. This is not completely true but I think most of you do not need to know more than this.

Colour 2:
This is the player colour on the minimap. Again this is not completely true but you just don't need to know more for now.

Colour 3:
This is the player colour everyone sees but noone notices. When a unit dies it's player colour becomes slightly darker. Thats defined here. Again this is not completely true but it should work just fine for you because you probably did not even know this existed.

For the people that are completely new to the RGB System. RGB stands for Red Green Blue and needs a value between 0-255 for each colour. For example 255 0 0 would be Red, 0 255 0 Green and 0 0 255 Blue. For more examples check this[www.rapidtables.com] out!