I am in the same boat. Everyone is telling me to do pinks,oranges, and browns but I like the jewels tones too. We are thinking of doing a deeper blue color (maybe cobalt) and a brighter green color (maybe a lighter shade then the blue). I like the idea of a darker color (representing fall) and then a lighter color (still holding on to summer). I am going to start looking into what flowers are seasonal during Sept. and go from there. I really am in love with green button mums and think they would look awesome against a darker blue color.