Heading recent studies have confirmed how the perception of colors, particularly those of the home environment, can influence (positively or negatively) the mood of a person. Color transmits information through electromagnetic waves coming from the outside and perceived by man thanks to their sensory organs. The visual perception of a color can basically trigger three reactions: a color can attract our attention by generating a pleasant sensation at a subconscious level, but it can also distance us, as it may evoke something unpleasant or it can make us remain indifferent. These reactions are based on our internal memory, that is, they emotionally lead us back to when, in the past, we recorded certain stimuli, positive or negative. We deduce that colors cannot be considered only objectively, as each color is perceived by man on the basis of their own experiences. This is why Interior Syling cannot be reduced to simple color combinations based on certain rules, but it is also - and above all - psychological interpretation of colors. The professional, in fact, will move in order to create a chromatically positive and pleasant environment for the client.