When it comes to fashion and swim, you can never go wrong with all black. It's slimming, goes with everything and can be worn at any time day or night. I've already worn this suit for swim (day) and as a bodysuit for night. This is one of the reasons why I opted for an all black one piece as opposed to white.
I typically stray away from wearing solid light colored one pieces because they don't always conceal bumps and they can be see through. Definitely not the vibe you're going for at a party. I recommend wearing a darker color like cobalt or black for your family BBQ.