Color vision is one of the most complex visual processes in the human body, relying on a precise interaction between the eyes and the brain. Although most people see similar colors, there are noticeable differences in how individuals perceive them. The process of color vision begins in the retina, which contains light-sensitive cells called cones. There are three types of cones, each responding to different wavelengths of light—red, green, and blue. The brain combines signals from these cones to create the full spectrum of colors we see. However, this system is not identical in everyone. Some individuals have color vision deficiencies, commonly known as color blindness, which are often caused by genetic factors affecting one or more types of cones. This can make it difficult to distinguish between certain colors, especially red and green. In addition, environmental factors and age also influence color perception. As people age, the lens of the eye may become more yellow, affecting how colors are seen. Lighting conditions can also change the way colors appear to the eye. Moreover, the brain plays a crucial role in interpreting colors. Personal experiences and cultural background can influence how individuals perceive and describe colors. In conclusion, differences in color perception arise from a combination of biological, genetic, and environmental factors, making each person’s visual experience unique. For Mrs. Reham Safaa Najem University of Al-Mustaqbal – The First and Leading Private University