What editor do you use? I have DreamWeaver and I can open all the css and templates pages, do a search for the term and all of them will be on a list. Can you do that to find the code you're looking for with your editor? I just tried doing a search of all the .tpl and .css for "FFE2D5" and nothing came up. I'll keep looking.

UPDATE: Nope, nothing for FFE2D5 coming up. I'm thinking the div class for "section bg2" is what you need to change in the CSS (css/style.css). Try that.