RYB (an abbreviation of red–yellow–blue) is a

subtractive color Subtractive color or subtractive color mixing predicts the spectral power distribution of light after it passes through successive layers of partially absorbing media. This idealized model is the essential principle of how dyes and inks are use ...

model used in art and applied design in which

red Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and a secondar ...

yellow Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the R ...

, and

blue Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when obs ...

pigments are considered

primary color A set (mathematics), set of primary colors or primary colours (see American and British English spelling differences#-our, -or, spelling differences) consists of colorants or colored lights that can be mixed in varying amounts to produce a gamu ...

s. Under traditional color theory, (which some artists see as the “correct theory” whilst others use modern color theory yminstead) this set of primary colors was advocated by

Moses Harris Moses Harris (15 April 1730 – 1787) was an English entomologist and engraver. Life and work Harris was encouraged in entomology from a young age by his uncle, a member of the Society of the Aurelians. In 1762 he became secretary of a secon ...

, Michel Eugène Chevreul,

Johannes Itten Johannes Itten (11 November 1888 – 25 March 1967) was a Swiss expressionist painter, designer, teacher, writer and theorist associated with the Bauhaus (''Staatliches Bauhaus'') school. Together with German-American painter Lyonel Feining ...

and

Josef Albers Josef Albers (; ; March 19, 1888March 25, 1976) was a German-born artist and educator. The first living artist to be given a solo show at MoMA and at the Metropolitan Museum of Art in New York, he taught at the Bauhaus and Black Mountain College, ...

, and applied by countless artists and designers. The RYB color model underpinned the color curriculum of the

Bauhaus The Staatliches Bauhaus (), commonly known as the Bauhaus (), was a German art school operational from 1919 to 1933 that combined crafts and the fine arts.Oxford Dictionary of Art and Artists (Oxford: Oxford University Press, 4th edn., 200 ...

Ulm School of Design The Ulm School of Design (german: Hochschule für Gestaltung Ulm) was a college of design based in Ulm, Germany. It was founded in 1953 by Inge Aicher-Scholl, Otl Aicher and Max Bill, the latter being first rector of the school and a former stu ...

and numerous art and design schools that were influenced by the Bauhaus, including the

IIT Institute of Design Institute of Design (ID) at the Illinois Institute of Technology (Illinois Tech), founded as the New Bauhaus, is a graduate school teaching systemic, human-centered design. History The Institute of Design at Illinois Tech is a school of design ...

(founded as the New Bauhaus),

Black Mountain College Black Mountain College was a private liberal arts college in Black Mountain, North Carolina. It was founded in 1933 by John Andrew Rice, Theodore Dreier, and several others. The college was ideologically organized around John Dewey's educational ...

, Design Department

Yale University Yale University is a private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the third-oldest institution of higher education in the United States and among the most prestigious in the wo ...

, the Shillito Design School, Sydney, and Parsons School of Design, New York. In this context, the term ''

'' refers to three exemplar colors (red, yellow, and blue) as opposed to specific pigments. As illustrated, in the RYB color model, red, yellow, and blue are intermixed to create

secondary color A secondary color is a color made by mixing of two primary colors in a given color space. Additive secondaries Light (RGB) For the human eye, good primary colors of light are red, green, and blue. Combining lights of these colors produces ...

segments of orange, green, and purple. This set of primary colors emerged at a time when access to a large range of pigments was limited by availability and cost, and it encouraged artists and designers to explore the many nuances of color through mixing and intermixing a limited range of pigment colors. In art and design education, red, yellow, and blue pigments were usually augmented with white and black pigments, enabling the creation of a larger gamut of color nuances including

tints and shades In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produc ...

. The RYB color model relates specifically to color in the form of paint and pigment application in art and design. Other common color models include the light model (RGB) and the paint, pigment and ink

CMY color model The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation ''CMYK'' refers ...

, which is much more accurate in terms of color gamut and intensity compared to the traditional RYB color model, the latter emerging in conjunction with the

CMYK color model The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation ''CMYK'' refers ...

in the printing industry.

History

The first scholars to propose that there are three primary colors for painters were Scarmiglioni (1601), Savot (1609), de Boodt (1609) and Aguilonius (1613). From these, the most influential was the work of

Franciscus Aguilonius Franciscus is a Latin given name, originally an epithet meaning "the Frank, the Frenchman". It was applied to Saint Francis of Assisi (1181/82–1226). Francis had been baptized Giovanni (John); his father was Italian and his mother Provenç ...

(1567–1617), although he did not arrange the colors in a wheel.

Jacob Christoph Le Blon Jacob Christoph Le Blon, or Jakob Christoffel Le Blon, (2 May 1667 – 16 May 1741) was a painter and engraver from Frankfurt who invented the system of three- and four-colour printing, using an RYB color model which segued into the modern CMY ...

was the first to apply the RYB color model to printing, specifically

mezzotint Mezzotint is a monochrome printmaking process of the '' intaglio'' family. It was the first printing process that yielded half-tones without using line- or dot-based techniques like hatching, cross-hatching or stipple. Mezzotint achieves tonali ...

printing, and he used separate plates for each color: yellow, red and blue plus black to add shades and contrast. In 'Coloritto', Le Blon asserted that “the art of mixing colours…(in) painting can represent all visible objects with three colours: yellow, red and blue; for all colours can be composed of these three, which I call Primitive”. Le Blon added that red and yellow make orange; red and blue, make purple; and blue and yellow make green (Le Blon, 1725, p6). In the 18th century,

advocated that a multitude of colors can be created from three "primitive" colors – red, yellow, and blue. Mérimée referred to "three simple colours (yellow, red, and blue)" that can produce a large gamut of color nuances. "United in pairs, these three primitive colours give birth to three other colours as distinct and brilliant as their originals; thus, yellow mixed with red, gives orange; red and blue, violet; and green is obtained by mixing blue and yellow" (Mérimée, 1839, p245). Mérimée illustrated these color relationships with a simple diagram located between pages 244 and 245: Chromatic Scale (Echelle Chromatique).''De la peinture à l’huile : ou, Des procédés matériels employés dans ce genre de peinture, depuis Hubert et Jean Van-Eyck jusqu’à nos jours'' was published in 1830 and an English translation by W. B. Sarsfield Taylor was published in London in 1839. Similar ideas about the creation of color using red, yellow, and blue were discussed in ''

Theory of Colours ''Theory of Colours'' (german: Zur Farbenlehre, links=no) is a book by Johann Wolfgang von Goethe about the poet's views on the nature of colours and how these are perceived by humans. It was published in German in 1810 and in English in 1840. ...

'' (1810) by the German poet, color theorist and government minister

Johann Wolfgang von Goethe Johann Wolfgang von Goethe (28 August 1749 – 22 March 1832) was a German poet, playwright, novelist, scientist, statesman, theatre director, and critic. His works include plays, poetry, literature, and aesthetic criticism, as well as trea ...

. In ''The Law of Simultaneous Color Contrast'' (1839) by the French industrial chemist Michel Eugène Chevreul discussed the creation of numerous color nuances and his color theories were underpinned by the RYB color model. Separate to the RYB color model, cyan, magenta, and yellow primary colors are associated with

CMYK The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation ''CMYK'' refers ...

commonly used in the printing industry. Cyan, magenta, and yellow are often referred to as "process blue", "process red", and "process yellow".

References

External links

a web RYB to RGB converter
{{DEFAULTSORT:Ryb Color Model Color space Obsolete scientific theories

History

See also

References

External links