What colour should my groomsmen wear if the bridesmaids are wearing burgundy and dusty pink?

Don't get too many more colors involved... have the men (vest and ties) wear the burgandy to bring in the 1 dress and compliment the pink. (vests come in some lovely burgandy patterns with a solid burgany ties)...Plus burgandy is a more masculin color. Then have them wear shirts that compliment your dress, once you have decided on white or ivory. Your going to have an awesome wedding!!!