Calypso is a bright blue holo. There are quite a lot of holos out there in this shade of blue. I understand why, it's such a beautiful, vivid blue.
I really like this. It was a long time ago I wore this type of blue holo. I've forgotten about how much I love the colour.
The pictures are taken in direct sunlight.
What you see in the pictures are two coats of Peita's Polish Calypso and one coat of Pretty Serious Crystal Coat.