With just a wee bit of tinkering, you can alter the in-game chat channel colors to whatever you like. Simply follow the steps below:

1. First off locate your Age of Conan folder in your directory and find the Default folder. Example of where it may be:
C:\Program Files\Age of Conan\Data\Gui\Default\TextColors.XML

2. Then copy that file (TextColors.XML) into the customized folder. Example of where it may be:
C:\Program Files\Age of Conan\Data\Gui\Customized\TextColors.XML

3. Now open the file in Notepad and you can modify any of the HEX color code values you want. Just use a website that has a HEX color code list or something. Like this:
http://www.visibone.com/color/hexagon_800.gif

4. After you have edited the values you wish to change save the XML file, close it out, and run a patcher.

5. Open AoC and enjoy.


By the way, the value that controls Global is:
"ctch_misc_name"
"ctch_misc_text"