Deborah Lippmann I Know What Boys Like Nail Lacquer ($16.00 for 0.5 fl. oz.) is described as a “playful periwinkle.” It’s a really rich, dark periwinkle, and to me, I see indigo–that perfect mix of blue and violet that gives you something different. I used two coats for swatches, and there is a hint of visible nail line, so I would say three is likely the ideal strategy here. It’s described as a cream finish, but it is more like a cream meets jelly–it has that slightly squishy look of a jelly.