This paper springs from a project about concept formation in the field of colour and light, andpresents a graphic model describing possible constituent relations between colour and lightexperiences. A deeper understanding of colour and light experiences calls for a coherent andwell-defined structure that can be used to describe connections and distinctions betweenexperiences of different kinds. This also can contribute to understanding of how colour andlight concepts are related to each other. We experience the world holistically. Our experiencesof colour, light and space have many aspects. Their relations to different levels of experiencealways have to be considered.