Fashion

There is such a thesis: "buy black and white – you will never make a mistake, it fits everything." 

The trap is this: what supposedly fits everything, really, sufficiently, does not fit anything. 

Black and white are the two most contrasting colors, there are several opinions on this topic: 
1)They match absolutely any color and do not spoil anything. 
2)They only fit each other: black + black, white + white, black + white. 
3) They are suitable only for themselves (total black) or for those close in color tone (white + beige)