Color is not only a physical property of objects, places or surfaces but also a perception caused by light that is recognized visually and processed by the brain. Color is a response of the brain to the visual stimuli received. This is similar to the smell of garlic powder causing a reaction in our brain as if it is garlic itself; as such, light in different combinations is perceived as “color”. Our mind perceives various wavelength combinations of light as “color”. Color, at the same time, is a form of energy because it is created by light. This energy guides the body’s functions and has an impact on the mind and emotions. For this reason it is not possible to consider colors as separate from light. Therefore, color and light must be considered in conjunction with each other where psychological, physiologic, visual and aesthetic aspects are concerned. Color and light are primary factors of impact in man-made environments. Their combined effect carries great significance in terms of psychological reactions and health.

Studies have shown that light and color affect the human organism both visually and non-visually. As proven by scientific studies, the role of light and color is well beyond the sole purpose of creating suitable illumination and elegant spaces. Sophisticated techniques such as EEG and Functional MRI are being used in the current analyses conducted. Thus, we now know that color affects brain waves, autonomic nervous system functions and hormonal activity.