Honestly, I'm surprised to be the first reviewer of this polish. Shades On was released as part of Essie's Spring 2016 collection and is a gorgeous mid-tone purple creme with a cool undertone. It is a bright, blue based purple shade which I believe would suit all skin tones. I got a lot of compliments when I wore this colour, and it is one of my favourite purple polishes to pull out when the weather starts getting warm. The formula is excellent, it is fully opaque in two coats and does not apply with streaks or patches. I must say all of Essie's Spring 2016 polishes which I tried had excellent formulas! It lasts around 5 days on me when paired with base and top coat and even longer as a pedicure colour, which is great as I love to wear this one on my toes. I would highly recommend this shade to anyone looking for a pretty, cool toned purple. It is an excellent colour, one which I will continue to wear a lot this Spring and Summer. A+