Black, grey, and white are very versatile colors, but sometimes may come across as very rustic, plain, and hard. Try mixing a bit of pink to your blacks, grey, or whites; the harshness will be toned down. It literally cleans out the rustic look and gives a pleasant warmth to the design.

As an example, a well designed bedroom often has to transition well with the attached bathroom. It is very often that designers choose to use natural stone or marble tiles starting from the bedroom and extending into the bathroom for unity. And if you add an accent of pink to the design to both the bedroom and bathroom, the entire design will be warmer and better transitioned. As a finishing touch, one can try highlighting grey walls with a thick black outline to clean out the edges. The result will be one stunning bedroom and bathroom that anyone can showoff to their guests.