I personally had experience of black paint on the walls in the Hotel Grand Ferdinand in Vienna  . Here a designer created drama and theater atmosphere with a black wall and white items. I loved being in the room of the hotel, although the outside was raining I felt comfort.
If you don’t have a courage to paint all walls in black color  ,  You can try darker colors in a bedroom or living room. I am recommending to complete a design with bright furniture. Also remember about right lighting  , use lighting only in places where you really need light.