Blue-green is the

color Color (or colour in English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-our, -or, see spelling differences) is the visual perception based on the electromagnetic spectrum. Though co ...

between blue and green. It belongs to the cyan family.

Variations

Cyan

Cyan is the blue-green color that is between

blue Blue is one of the three primary colours in the RYB color model, RYB colour model (traditional colour theory), as well as in the RGB color model, RGB (additive) colour model. It lies between Violet (color), violet and cyan on the optical spe ...

and

green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a com ...

on a modern

RGB color wheel The RGB color model is an additive color model in which the red, green, and blue primary colors of light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three ad ...

. The modern RGB color wheel replaced the traditional old-fashioned RYB color wheel because it is possible to display much brighter and more saturated colors using the primary and secondary colors of the RGB color wheel. In the terminology of

color theory Color theory, or more specifically traditional color theory, is a historical body of knowledge describing the behavior of colors, namely in color mixing, color contrast effects, color harmony, color schemes and color symbolism. Modern color th ...

RGB color space RGB color spaces are a category of additive colorimetric color spaces specifying part of its absolute color space definition using the RGB color model. RGB color spaces are commonly found describing the mapping of the RGB color model to human p ...

has a much larger

color gamut In color reproduction and colorimetry, a gamut, or color gamut , is a convex set containing the colors that can be accurately represented, i.e. reproduced by an output device (e.g. printer or display) or measured by an input device (e.g. ...

than

RYB color space RYB (an abbreviation of red–yellow–blue) is a subtractive color model used in art and applied design in which red, yellow, and blue pigments are considered primary colors. Under traditional color theory, this set of primary colors was ad ...

. The first recorded use of ''cyan'' as a color name in English was in 1879.

Turquoise

The color turquoise is that of the semi-precious stone

turquoise Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula . It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue. The robi ...

, which is a light tone of blue-green. Its first recorded use as a color name in English is from 1573.

Green-blue

Green-blue is a

Crayola Crayola LLC, formerly the Binney & Smith Company, is an American manufacturing and retail company specializing in list of art media, art supplies. It is known for its brand ''Crayola'' and best known for its crayons. The company is headquartered ...

crayon color from 1958 to 1990.

Bondi blue

Bondi blue belongs to the

cyan Cyan () is the color between blue and green on the visible spectrum of light. It is evoked by light with a predominant wavelength between 500 and 520 nm, between the wavelengths of green and blue. In the subtractive color system, or CMYK c ...

family of blues. It is very similar to the Crayola crayon color "blue-green".

Apple, Inc. Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It is best known for its consumer electronics, software, and services. Founded in 1976 as Apple Computer Com ...

christened the color of the back of the original iMac computer "Bondi blue" when it was introduced in 1998. It is said to be named for the color of the water at

Bondi Beach Bondi Beach () is a popular beach and the name of the surrounding suburb in Sydney, New South Wales, Australia. Bondi Beach is located east of the Sydney central business district, in the Local government in Australia, local government area of ...

, in Sydney, Australia.

Blue green (Munsell)

One definition of the color is in the Munsell color system (Munsell 5BG) although there is widespread acceptance and knowledge of the color from the so-called blue-green algae which have been recognised and described since the 18th century and probably before that.

Cerulean

Teal

In nature

Blue-green algae Cyanobacteria ( ) are a group of autotrophic gram-negative bacteria that can obtain biological energy via oxygenic photosynthesis. The name "cyanobacteria" () refers to their bluish green (cyan) color, which forms the basis of cyanobacteria' ...

are a

phylum In biology, a phylum (; : phyla) is a level of classification, or taxonomic rank, that is below Kingdom (biology), kingdom and above Class (biology), class. Traditionally, in botany the term division (taxonomy), division has been used instead ...

bacteria Bacteria (; : bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of Prokaryote, prokaryotic microorganisms. Typically a few micr ...

that obtain their energy through

photosynthesis Photosynthesis ( ) is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabo ...

. * The

blue green damselfish ''Chromis viridis'' (green chromis) is a species of damselfish. Individuals tend to be Iridescence, iridescent apple-green and light blue, and reach a maximal length of 10 cm. It is sometimes called the "blue-green chromis", but that may al ...

is a species of

damselfish Damselfish are those fish within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastinae within the family Pomacentridae. Most species within this group are relatively small, although the four largest speci ...

. *

Glacial flour Rock flour, or glacial flour, consists of fine-grained, silt-sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion or by artificial grinding to a similar size. Because the material is very small, it becomes suspe ...

, powdered rock, can turn a lake to a blue-green color.

In culture

* In some

language Language is a structured system of communication that consists of grammar and vocabulary. It is the primary means by which humans convey meaning, both in spoken and signed language, signed forms, and may also be conveyed through writing syste ...

s, blue and green are considered a single color. * In the

iconography Iconography, as a branch of art history, studies the identification, description and interpretation of the content of images: the subjects depicted, the particular compositions and details used to do so, and other elements that are distinct fro ...

of the

Virgin of Guadalupe Our Lady of Guadalupe (), also known as the Virgin of Guadalupe (), is a Catholic Church, Catholic Titles of Mary, mother of Jesus, title of the Blessed Virgin Mary associated with four Marian apparitions to Juan Diego and one to his uncle, J ...

, she is often depicted as wearing a blue-green colored robe. The color is significant to the

Mexica The Mexica (Nahuatl: ; singular ) are a Nahuatl-speaking people of the Valley of Mexico who were the rulers of the Triple Alliance, more commonly referred to as the Aztec Empire. The Mexica established Tenochtitlan, a settlement on an island ...

s because of the

Aztec religion The Aztec religion is a polytheistic and monistic pantheism in which the Nahua concept of '' teotl'' was construed as the supreme god Ometeotl, as well as a diverse pantheon of lesser gods and manifestations of nature. The popular religion te ...

. Also, Blue-green is known as

Maya blue Maya blue () is a unique bright turquoise or azure blue pigment manufactured by cultures of pre-Columbian Mesoamerica, such as the Mayas and Aztecs, during a period extending from approximately the 8th century to around 1860 CE. It is found in ...

pre-Columbian In the history of the Americas, the pre-Columbian era, also known as the pre-contact era, or as the pre-Cabraline era specifically in Brazil, spans from the initial peopling of the Americas in the Upper Paleolithic to the onset of European col ...

cultures. In the

Nahuatl Nahuatl ( ; ), Aztec, or Mexicano is a language or, by some definitions, a group of languages of the Uto-Aztecan language family. Varieties of Nahuatl are spoken by about Nahuas, most of whom live mainly in Central Mexico and have smaller popul ...

culture blue represents the center of fire and tonalli. Also sometimes the blue color is diluted so it appears as a

on manuscripts. The color is often used for the representation of Aztec rulers and European kings. *Variations of blue-green are the political colors (or one of the political colors) of various political parties, including: ** New Right (

Denmark Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...

) ** DENK (

The Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

) ** Brexit Party/Reform UK (

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

) ** People-Animals-Nature (

Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...

) ** Justice Party (

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

) *In Australia, a loosely-aligned group of independent and minor party candidates that ran in the 2022 Australian federal election were called teal independents for their blend of

and blue (Liberal) politics.

References

{{Color topics Shades of cyan Shades of blue Shades of green