How do your eyes see a specific color?
Your eyes see a specific color based on the wavelengths of light that are reflected off of an object and into your eyes. Objects appear to have color because they absorb certain wavelengths of light and reflect others. For example, an object that appears red absorbs all wavelengths of light except for red, which is reflected into your eyes.
When light enters your eye, it passes through the cornea and then the lens, which focus the light onto the retina at the back of your eye. The retina contains cells called cones that are sensitive to different wavelengths of light. There are three types of cones, each sensitive to either red, green, or blue light. When light of a certain wavelength strikes a cone cell, it sends a signal to your brain that allows you to perceive that specific color. The brain then combines the signals from the three types of cones to create the full range of colors that you see.