The disclosure is related to a décor harmony service (DHS) that facilitates mapping of colors from a color palette to decor accessories in a setting, e.g., a room, such that the décor accessories, when arranged together, appear harmonious to a user. For example, using harmony-distribution rules, the DHS maps a set of décor accessories occupying “60%” of the area of a room to a main color of a color palette, a second set of décor accessories occupying “30%” to a feature color and a third set of décor accessories occupying “10%” to an accent color. The DHS generates a representation of the room, e.g., an image of the room, with the décor accessories having the assigned colors. The DHS facilitates a user to use the generated image for finding and purchasing décor products that match with a décor accessory in the generated image.