Cobalt blue is one of those trends (and by "one of those trends" I mean "all trends") that come back around every few years, but I always get particularly excited when fashion magazines start being like, "Have you heard of this really pretty color called cobalt blue?" because cobalt blue happens to be my favorite color. And luckily, this fall is yet another season of cobalt. Pair this bold blue with black, cream, khaki, and other neutrals, or play with more unexpected combinations like hot pink or deep red. Here are 10 cobalt pieces to bring a bit of this fabulous trend into your fall wardrobe...