One of the things I think about a LOT in my work is sight lines, and the relationship of elements from one room to another. For example, if we have blue on the walls in one room, I might put it on the upholstery in another room or the floor in a third. This helps keep a tight palette but allows you to experience color at different levels and in different materials.
When revising the dining plan I showed you the other day, I remixed some favorite elements to get this:
But the pair of armchairs they are currently favoring for their living room are leather in a similar tone. To achieve the same mood but take the leather off the chairs, I did this:
The blue stripe in the chairs, the leather on the floor (and we can even use an existing hide!) My client couldn't be happier.