An experiment in which subjects rated their impression of 50 interior environments which were the contrasting combinations of two lighting colors, five wall and floor color combinations, and five furniture colors were performed. Of particular significance was the higher harmony ratings assigned to color layouts presenting blue and green furniture colors when they are with similar wall and floor color hues than others. The ratings of harmony rose when room model presented bluish walls and floors and was illuminated by daylight fluorescent lamps rather than bulb color ones. However, the rating differences between the two lamps were not clear when assessing likability or comfort.
