Here are some great articles on color from some of the message boards, these are all past discussions.
http://www.neapolitan.org/phpBB/viewtopic.php?t=3689&highlight=bbdd

http://www.neapolitan.org/phpBB/viewtopic.php?t=6926&highlight=bbdd

http://www.neapolitan.org/phpBB/viewtopic.php?t=6842&highlight=bbdd

http://www.neapolitan.org/phpBB/viewtopic.php?t=5045&highlight=bbdd

http://neapolitanworld.com/community/modules.php?name=Forums&file=viewtopic&t=419&postdays=0&postorder=asc&start=30