This work explores how colour and light can be used as the prime design materials. They are investigated in unison in relation to spatiality. Colour is a way for us to understand and identify what we see, it is primary for how we interpret our surroundings. The aim is to explore colour, light and reflections, by the means of printing and dyeing of translucent materials, as an attempt to challenge the visual perception of the spectator and the experience of how spatiality is perceived. The project investigates how the boundaries of a textile can be questioned, for example where does a pattern begin and end? Does it only belong to the textile or can it transcend to it’s surroundings? The investigational process is experimental and explores combinations of colour and light in translucent materials, coloured through the techniques of heat transfer printing and dyeing. Swatches made are analysed in relation to each other and to light, with a focus on their visual performance. The final design examples discusses the idea of how textile, light and colour can be used to create, define and illuminate spatiality.