I fell in love with this blue shade from Essie called "Beach Bum Blu". I typically think of blue shades as colors to wear during the summer. Beach Bum Blu is a medium blue with lots of shine. I would say it is very similar to a metallic formula.
This colour covered in just one coat for me. I did apply a base coat as I read that it can stain your nail bed. The below picture is my pedicure about one week old so it is holding up very well!