There are those days when nothing looks good to you except black. Those days are totally normal, and we all have them. But the next time you have one, think of Dakota Fanning strutting around NYC in an all-black look except for a cozy blue sweater, which provided just the right amount of color. Picking up a colorful sweater is just as easy as picking up a black one, and that small variation will lend lots of pizazz. If you're not into blue, like Dakota, you can choose any color you like. The key is to keep the rest of your outfit strictly black, everything from your scarf down to your shoes. That way the sweater will stand out among a sea of black.