Have you ever decided on a paint color, only to have it show up differently on the wall in your home? This phenomenon is a common one when it comes to painting interior walls with varying degrees of natural or artificial light. Some rooms in our homes get less natural light than others due to their positioning, the number of windows and doors and the tone of the artificial lights. Powder rooms, hallways and basements, for instance, usually have less natural light than other parts of a house. No matter what interior room you decide to paint, considering the source and quality of light — or rather, the absence of light — in a given space is crucial to choosing colors for it.