Indigo seem to be color of the choice in all of the shades... I actually Googled indigo color, and got all of the choices of indigo color (depending for what was used) and range is from this lightest blue, to your blue jeans and all shades in between, plus some that would have more gray or purple added to a mix. It seem that indigo is not your garden variety blue ( except when it comes in the form of indigo flower...).
Darkest blue is OPI - Road house blues, and I also used it for a stamping. Lightest blue is achieved by adding a layer of OPI sheer tint in I can teal you like me over a white base. Glitter is Wet 'n' Wild - Jam session.
I used Bundle Monster plate BM-720 from their Secret garden collection I won in February.
I also added bird of paradise flower, to add little bit of color to otherwise monochromatic look of blues... I stamped over Road house blues using Mundo de unas white.