Overview

Secondary colors are hues created by combining two primary colors. The exact result depends on the color model and the medium: in pigment (paint), mixing subtracts wavelengths, while in light (screens), mixing adds wavelengths. Because of these differences, the set of secondaries used in traditional art differs from the set used in digital or printing systems.

Common models and their secondaries

  • RYB (traditional pigments): the conventional artists' primaries red and yellow produce Orange, yellow and blue produce Green, and red and blue produce Purple. In some art contexts these three secondaries are remembered as O‑G‑P. The constituent primaries can be referenced as red, yellow, and blue.
  • RGB (additive light): on digital displays the primaries red, green and blue mix additively. Red + green yields Yellow, green + blue yields Cyan, and blue + red yields Magenta. These are often discussed alongside their complementary relationships to the RGB primaries.
  • CMY/CMYK (subtractive printing): in subtractive color reproduction the primaries are cyan, magenta and yellow; mixing two of them produces the secondary colors red, green and blue. Printers typically add black (K) to extend tonal range and reduce ink use.

Characteristics and terminology

Whether a given hue is called a secondary depends on the chosen set of primaries. "Secondary" denotes position on the traditional color wheel: a hue halfway between two adjacent primaries. When a secondary is mixed with one of its neighboring primaries the result is a tertiary color (for example, red mixed with orange produces red‑orange). Secondary colors also play a role in complementary color pairs used for contrast and visual balance.

History and practical notes

The RYB model grew from centuries of painters' practice and color mixing experiments, while mathematical and physical studies of light led to the RGB and CMY frameworks used in optics, photography and printing. Designers and artists choose the model that fits their medium: painters work with pigment mixing and RYB (or modern pigment primaries), screen designers use RGB, and printers use CMYK approaches. Understanding the difference between additive and subtractive mixing is key to predicting outcomes when combining colors.

Uses and examples

Secondary colors are fundamental in color education, art, graphic design and manufacturing. Examples include mixing paints to create specific greens or oranges in painting, producing yellow or cyan pixels on a monitor, and separating images into CMYK components for print. Learning how primaries combine to form secondaries helps artists match tones, designers control color harmony, and technicians manage reproduction across devices.

Further distinctions

Practical outcomes vary with material: two pigments mixed may produce a muddier hue than the predictable midpoint on a theoretical wheel because real pigments absorb different wavelengths. Color systems used in industry often define primaries and secondaries with measured coordinates rather than simple names, which improves reproducibility across media and devices.

For more visual examples and technical definitions, see resources linked by color name in this article: Orange, Red, Yellow, Green, Blue, Purple, Yellow (RGB), Cyan, and Magenta.