Large-area luminaires have quickly established themselves as a design element and technical solution for lighting tasks within architecture. To augment physiological and psychological effects, it is possible to match the created pools of light to suit the dynamic changes of daylight by using changing colour temperatures. This has positive effects on well-being and health. Using colour as a design feature makes the architecture more tangible, and using additive colour mixing allows accents to be added and enables moods to be positively influenced.