I wish they'd just both wear the home jersey's. Think the powder blue and orange would look really good together and there's not a chance on earth that the contrast isn't good enough to warrant one of them wearing white instead.
Clemson wore Purple last year, for whatever it's worth. I would have assumed that the home/away position just alternates between the conferences, but it looks like Kentucky wore white in 2006. Shoulda been blue in 2006 if it just alternates and Clemson was in Purple last year. Dunno.