This research explores colored light from historical, scientific, and technological vantage points. Effects of colored light on the human condition are examined on multiple levels, comparing theories in physiological, psychological, and phenomenological areas of study, addressed across a broad scope of literature. The focus of this research is to gain an understanding of the effects of colored light on the human condition, and how designing with it can provide an engaging phenomenological experience which marries centuries’ old design techniques with modern technological innovations. The stages of research include a literature review, followed by a series of creative explorations with light, texture and form through small-scale models. Data gathered is then analyzed, categorized, and used to create a taxonomy for designing with colored light. Research is then explored on a larger scale through a pilot study conducted in a 5’ x 9’ room designed to create an experience of being bathed in colored light with user-controlled variability. Each research method may then be used to inform the design of interior environments, affecting the participant’s physiological, psychological, and phenomenological experiences.