What color wedding dress would work best?

I am getting married on August 31, 2008 and my bridesmaids dresses are truffle with orchid colored sashes and an orchid peekaboo skirt. I have always imagined myself getting married in a white wedding dress, but now I’m beginning to think that maybe ivory would look better since the bridesmaids dresses are truffle colored. What do you think? Do you think white would be nice as well or should I really go with ivory? Thank you for your advice!