Guild Colors will now follow by these rules, all guilds will start out with a Gray colored name. The more your guild progresses, the higher the rank your guild will get which changes your color. Color's of guilds will go by how item loot is colored which is:
Gray - lowest Rank
White - Low Rank
Green - Average Rank
Blue - High Rank
Purple - Very High Rank
Orange - Highest Rank (Have beaten all the Raid Dungeons)