In these swatches, 2 coats of Essie Smooth Sailing, a periwinkle with silver, purple and turquoise shimmer.
At first, I thought it was similar to Zoya Skylar, but when I grabbed my bottle of Skylar I had to admit they're different. The only thing they have in common are the shimmer.
Index & Ring : Essie Smooth Sailing
Middle & Pinky : Zoya Skylar.