I'm having my groomsmen wear light pink ties to match the bridesmaids. Their tux will be a dark charcoal grey. At the shop, my fiance and I preferred the matching light pink vest, but the groomsmen liked the black vest (they didn't have an exact matching charcoal). I honestly think the groomsmen just want to avoid wearing pink regardless of whether it matches or not.
Do the groomsmens' ties have to match their vests?