This research explores the human response to colored lighting with light emitting diodes (LEDs) in a space with the intent of understanding preference and affectual response. The research was conducted through photographic appraisal of a single interior space illuminated with monochromatic and mixed colored lighting3. Results indicate that the stimuli of monochromatic lighting (red, blue, green) confers distinct subjective impressions to a spatial setting and, for a number of subjects, prompts memories. When mixed color lighting is introduced, there are preferences for warm colors and consensus that red lighting is energizing. Future studies will replicate this study with in-situ, immersive experiences.