There is a wide choice of lights which can be classed as ‘wall washer’. The idea is that your light fitting throws a sheet of light onto a wall, lighting your room through reflected light. It can also be a good way of lighting pictures with a more diffused light than the usual spot light.

The Flos Easy Kap wall washer has a couple of nice features. It’s circular; there is minimal framing visible around the recessed source (and if you are brave enough to fit the ‘Kap’ version, there is NO visible framing); but best of all it’s available in several colours (black, white, gold and blue) which give you freedom to subtly match it with your decor.
The one downside of this light is that it does need careful fitting. Any chips in the plaster around the circular cutout will be seen!
This is from the Flos Architectural range, so it’s best found through a Flos dealer. The people at Scossa are very helpful so start there! To view the other models in this range, try dmlights.