Color blocking is so fun and refreshing that I can't seem to get enough of it. If you're afraid to try it for yourself, here are some tips: I find color blocking looks best when done with rich and vibrant colors, especially jewel-tones. Not sure what colors to put together? The possibilities are endless, but some basic knowledge of color theory can be a big help. If you're feeling intimidated, start by mixing colors in the same family such as warm colors (red, orange, and yellow) or cool colors (blue, green, and purple). If you're feeling bolder, try combining primary colors (red, yellow, and blue), secondary colors (orange, green, and purple) or complementary colors. (My personal favorite complementary combo is blue and orange.) And if you're still not sold on the idea, check out Gucci's Spring 2011 collection.