What does trichromatic mean?
Trichromatic is an adjective describing something that has three colors or that relies on three distinct color-sensitive mechanisms. In art and design, it can refer to a deliberately limited palette of three hues, as in a trichromatic scheme. In biology and vision science, it most often describes normal color vision: most humans have three types of cone cells, generally associated with sensitivity to long, medium, and short wavelengths, and these systems work together to support color discrimination. The word is precise but somewhat formal, and it is especially useful when discussing color vision, printing, and color theory. It should not be confused with “trichrome,” which may name a three-color reproduction process or image rather than serving as the adjective.
adjectiveHaving or involving three distinct colors. In vision science, the term describes normal color vision based on three types of color-sensitive cone cells.
- Having or involving three distinct colors
- Relating to or possessing normal color vision based on three cone-cell types
"The artist's latest work uses a trichromatic palette of red, yellow, and blue."
"The museum acquired a trichromatic textile from the nineteenth century."
"Most people have trichromatic vision and can distinguish colors along the red, green, and blue axes."
Your everyday color vision is trichromatic: three types of cone cells work together to let you distinguish a vast range of colors.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does trichromatic come from?
“Trichromatic” was formed in the early 19th century from Greek tri-, meaning “three,” and Greek chrōma, meaning “color,” together with the suffix -atic. The same Greek roots appear in related words such as “chromatic,” “dichromatic,” and “polychromatic.” The term originally referred to three-color printing and later became especially important in the study of color vision.
Related word forms
How trichromatic is actually used
The word is relatively technical and formal outside discussions of color, printing, or vision science. In vision research, it commonly contrasts with “dichromatic” and “monochromatic” color vision.
Easily confused with trichromatic
“Trichromatic” is the adjective describing three colors or three-color vision, while “trichrome” can be a noun referring to a three-color printing process or a type of three-color image.