Agree with Jazzdude. High contrast is great for the eye, but bad for the soundstage unless you always listen with your eyes closed. Order the color that will blend best into your decor. Get the matching grilles too if you don't get a color that is close to black. Avoid white speakers with exposed black drivers or black grilles for example. I know this is hard because we all want our pride and joy to stand out and be noticed. Of course you could always change your decor to match your speakers. Painting your wall fly yellow or Ferrari red might be a bit much though.
Jazzdude had a nice tip for putting something visually interesting between your speakers to draw your eye away from them. I have a fireplace, so I had not put much thought into that before.
Good Luck,