As long as you're ok with everyone assuming you have a girl dog, then it's fine. I have a male cat with a brown carrier with pink piping (it was the only color they had at the store), and EVERYONE assume's he is female. It's not a big deal to me though, so I haven't changed carriers.
Pink is great! My dogs have names that don't designate whether they are males or females. It really hasn't been a problem at all.
If you like the carrier, go with it. (It's probably really cute anyway.)