Suits

I think it'll look cute together! You also could do the bowtie or a tie the same color as the dresses.

I agree with Yasmine to make the bowtie the same color as dresses..it would look nice that way..and the pocket square won't seem out of place being the only different color they are wearing.

Usually the pockey square doesn't match the tie exactly, so I think it's fine to have a different shade or pattern there. But I also recommend bow ties the same color as the bridesmaids. Azazie makes bow ties in all the same colors, so you know you'll get as close to an exact match as possible.