Carmine is a pigment of a bright-red color.
Carmine may also refer to:
Indigo is a term used for a number of hues in the region of blue. The word comes from the ancient dye of the same name. The term "indigo" can refer to the color of the dye, various colors of fabric dyed with indigo dye, a spectral color, one of the seven colors of the rainbow as described by Newton, or a region on the color wheel, and can include various shades of blue, ultramarine, and green-blue. Since the web era, the term has also been used for various purple and violet hues identified as "indigo", based on use of the term "indigo" in HTML web page specifications.
The bee-eaters are a group of birds in the family Meropidae, containing three genera and thirty-one species. Most species are found in Africa and Asia, with a few in southern Europe, Australia, and New Guinea. They are characterised by richly coloured plumage, slender bodies, and usually elongated central tail feathers. All have long down-turned bills and medium to long wings, which may be pointed or round. Male and female plumages are usually similar.
Crimson is a rich, deep red color, inclining to purple. It originally meant the color of the kermes dye produced from a scale insect, Kermes vermilio, but the name is now sometimes also used as a generic term for slightly bluish-red colors that are between red and rose. It is the national color of Nepal.
Carmine – also called cochineal, cochineal extract, crimson lake, or carmine lake – is a pigment of a bright-red color obtained from the aluminium complex derived from carminic acid. Specific code names for the pigment include natural red 4, C.I. 75470, or E120. Carmine is also a general term for a particularly deep-red color.
A lake pigment is a pigment made by precipitating a dye with an inert binder, or mordant, usually a metallic salt. Unlike vermilion, ultramarine, and other pigments made from ground minerals, lake pigments are chemically organic. Manufacturers and suppliers to artists and industry frequently omit the lake designation in the name. Many lake pigments are fugitive because the dyes involved are not lightfast. Red lakes were particularly important in Renaissance and Baroque paintings; they were often used as translucent glazes to portray the colors of rich fabrics and draperies.
Indigo is a color between blue and violet.
Carmine color is the general term for some deep red colors that are very slightly purplish but are generally slightly closer to red than the color crimson is. Some rubies are colored the color shown below as rich carmine. The deep dark red color shown at right as carmine is the color of the raw unprocessed pigment, but lighter, richer, or brighter colors are produced when the raw pigment is processed, some of which are shown below.
The rainbow bee-eater is a near passerine bird in the bee-eater family Meropidae.
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. Like indigo, it produces a blue color, and is used in food and other consumables, cosmetics, and as a medical contrast agent and staining agent; it also acts as a pH indicator. It is approved for human consumption in the United States and European Union. It has the E number E132, and is named Blue No. 2 by the US Federal Food, Drug, and Cosmetic Act.
The northern carmine bee-eater is a brightly-coloured bird in the bee-eater family, Meropidae. It is found across northern tropical Africa, from Senegal eastwards to Somalia, Ethiopia and Kenya. It was formerly considered to be conspecific with the southern carmine bee-eater which has a carmine coloured throat rather than the blue throat of the northern species.
The southern carmine bee-eater is a species of bee-eater found across sub-equatorial Africa. It was formerly considered conspecific with the closely related northern carmine bee-eater, with the combined species then known as carmine bee-eater.
The rosy bee-eater is a species of bird in the family Meropidae. It is found in Angola, Benin, Burkina Faso, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Nigeria, and Togo.
The blue-throated bee-eater is a species of bird in the bee-eater family. They are found throughout southeast Asia in subtropical or tropical mangrove forests. Their diet consists mostly of bees, wasps, and dragonflies. Blue-throated bee-eaters are small with colorful plumage consisting of a red nape, dark green wings, light green breast, and their signature blue throat. Juvenile plumage contain dark green head and wings and light green breasts, only developing their full plumage in adulthood. They have a rich variety of songs and calls, including longcalls which allow them to communicate long distances in the forest.
Red light or redlight may refer to:
Carmine bee-eater may refer to:
The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose solution. However, shaking the bottle oxidizes methylene blue back into its blue form. With further shaking, this color-change cycle can be repeated many times. This experiment is a classic chemistry demonstration that can be used in laboratory courses as a general chemistry experiment to study chemical kinetics and reaction mechanism. The reaction also works with other reducing agents besides glucose and other redox indicator dyes besides methylene blue.
Dyeing is the craft of imparting colors to textiles in loose fiber, yarn, cloth or garment form by treatment with a dye. Archaeologists have found evidence of textile dyeing with natural dyes dating back to the Neolithic period. In China, dyeing with plants, barks and insects has been traced back more than 5,000 years. Natural insect dyes such as Tyrian purple and kermes and plant-based dyes such as woad, indigo and madder were important elements of the economies of Asia and Europe until the discovery of man-made synthetic dyes in the mid-19th century. Synthetic dyes quickly superseded natural dyes for the large-scale commercial textile production enabled by the Industrial Revolution, but natural dyes remained in use by traditional cultures around the world.
Violet is a color term derived from the flower of the same name. There are numerous variations of the color violet, a sampling of which are shown below.
Cherry red may refer to: