Spring 2011 collections from designers such as Jason Wu, Mulberry, and Isabel Marant were dotted with pops of rich blue tones; with even more designers offering super-saturated versions of the shade for Fall 2011, it looks like this is one color that will be sticking around for quite some time. 

Sink into a deep sea dream this season with shades of Klein, cobalt, and indigo blue.

Source:fashionologie.com