The aim of this paper is finding ways of overcoming dyschromatopsia and the possibility of its early detection, as well as simulating its effects for better understanding of how people with color blindness actually see. The paper presents a way to get an adequate simulation of color blindness. The first part goes over human eye anatomy which is responsible for color vision. To implement a simulation of protanopia, deuteranopia and tritanopia it is necessary to perform the transition from RGB to LMS color space. The transition process requires understanding of all three types of color blindness, only then can we properly affect the appropiate cones.