Panache has some cute colors and they're great bras. I have mine in Geo Print and my fellow pole girls kept complimenting me on it. Just mouse through the colors, there's more than generic solids in there. :)

http://www.amazon.com/Panache-Womens-Underwired-Sports-Black/dp/B005VNFFZ6

I know you said 30C, but in this brand, as a 28H I wear a 30FF. Amazon has a great return system anyways!