The dress inspired fresh insights into human color vision as people saw two different colors.
:59,12== Color vision ===== Development of theories of color vision ===Although Aristotle and other ancient scientists had already written on the nature of light and color vision, it was not until Newton that light was identified as the source of the color sensation
 In reality, the visual system is constantly adapting to changes in the environment and compares the various colors in a scene to reduce the effects of the illumination

