trichromácia

Trichromacia is a term used in optics and color vision to describe the normal human ability to perceive a full spectrum of colors. This ability is mediated by three types of cone cells in the retina, each sensitive to different wavelengths of light: red, green, and blue. When light stimulates these cone cells in varying combinations and intensities, the brain interprets these signals as different colors.

Individuals with trichromacia, often referred to as trichromats, can distinguish between a wide range of hues and saturation levels. This is in contrast to color vision deficiencies, such as dichromia or anomalous trichromia, where one or more types of cone cells function imperfectly, leading to a reduced ability to perceive certain colors. The precise way in which red, green, and blue light combine to create the perception of all other colors is a complex process involving the interaction of these three cone types. This normal color vision allows for a rich and detailed visual experience of the world.