here you go
http://www.thesecretworld.com/
http://l3cdn.funcom.com/tsw/artworks/header_early_access-612x337.jpg
http://darksoul.fr/wp-content/uploads/2013/01/tsw-illuminati.jpg
They usually play with the 3 factions colors (blue red green), mixing pop colors or dark ones. I play Illuminati faction (the last picture, blue pyramid), if that can help :)