This is 'working' because it's so easy on the eye. It has a dominant color with two accent colors. The dominant color is the warm gray. My favorite neutral. The accent colors are the orange in the wood that purposely matches the windows. The other accent is the green grass. This home has 3 warm grays all of them closely related in value so they go together well. Notice where they placed the different grays. Well thought through. It is a simple color scheme with simple lines of architecture and clean landscape lines. A pleasure to view!! Five star rating.