Cheryl Cole was a walking color-block DON'T at recent auditions for "The X Factor" in Los Angeles.

While "The X Factor" judge and singer had the right idea when she decided to pair a tangerine Oscar de la Renta blouse with purple Diane von Furstenberg pants, it seems as though she forgot one of the classic color-blocking rules: When combining two or more colors, make sure the cut and style of your ensemble is streamlined so as to not overcomplicate (and ruin) an already-busy outfit.

I also would've liked to have seen her accessorize her look with a belt within the primary color family, as the pastel blue looked a bit off.

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