I LOVE Blue as a web design color. When I was a senior at Vassar I painted a common room in Main the blues of Keith Jarret's album Arbor Zena (in image). Took a week, but the room shared some of the same reasons I love blue for web designs.
5 Reason Blue Rocks Web Design
* Sends trust, strength, grace and beauty signals.
* Easy to manipulate ( shades of blue work online see LoewyDesigns).
* Works as accent or background.
* Images pop off of blue nicely.
* There are many text and font options with blue.
Here are my 3 favorites from the examples:
* LoewyDesigns (shades of blue).
* Black Sea Fisheries (for way blue caries type and fonts).
* Z-Index.it - for how calming blue can be to chaotic multiple image Pinterest-like heroes