Swimsuit... Nailed It! is a blue foil. And oh boy does it stain. I love love love it on my fingers and toes. But I had it on my toes for a month and a half or so (touching it up whenever it chipped, not very often), and I tried to remove it right before Valentine's Day and it made me look like a smurf :P. It was funny but annoying. To prevent this, take my word and USE A BASE COAT NO MATTER WHAT.
All in all a gorgeous color. I just received my second bottle of it yesterday (via giveaway, will post about the winnings soon) and I couldn't be happier. I wear this ALL the time.