how about your favorite colors or colors that look good on you?
I shopped for both my jahez and bari so i ended up getting a variety of colors....black, peach, pink, aquamarine, turquoise, maroon, white, plum, champagne, .....basically colors I love
when you start shopping around you get a general idea of what to get in terms of colors and designs....also depending on what type of dress you are getting ie evening or casual, you can do different colors according to that
good luck :)