People nowadays always play with one or same colour for their outfit. to me one should play with different colours. sometimes, me myself like to wear different colour for my outfit but in the same i am still want to have this 'simple and clean' look. sure, i have to admit that to play with different colours is not an easy job because if u choose wrong colour and u have too much colour going on with your outfit it could be a disaster. to me 2 or 3 colours are more than enough. yet it is all depend on you and your style.