Why do we see different colors?

Why do we see different colors?

When we see different colors, what we’re really perceiving is different wavelengths of light. Your eyes contain photoreceptors (cells) that process light entering the eye to help you perceive color. Rods detect differences between dark and light. Cone cells detect colors when lighting conditions are bright enough. Each wavelength corresponds to a different shade in the visible spectrum of light. Reds are the longest wavelengths, greens are medium and blues are the shortest.