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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. [ 2] It lies between violet and cyan on the spectrum of visible light. The term blue generally describes colours perceived by humans observing light with a dominant wavelength that's between approximately ...
Blue pigments are natural or synthetic materials, usually made from minerals and insoluble with water, used to make the blue colors in painting and other arts. The raw material of the earliest blue pigment was lapis lazuli from mines in Afghanistan, that was refined into the pigment ultramarine. Since the late 18th and 19th century, blue ...
Egyptian blue, also known as calcium copper silicate (CaCuSi 4 O 10 or CaOCuO (SiO 2) 4 (calcium copper tetrasilicate)) or cuprorivaite, [ 1] is a pigment that was used in ancient Egypt for thousands of years. It is considered to be the first synthetic pigment. [ 2] It was known to the Romans by the name caeruleum.
Incandescence is the emission of electromagnetic radiation (including visible light) from a hot body as a result of its high temperature. [ 1] The term derives from the Latin verb incandescere, to glow white. [ 2] Although an object does not have to glow brightly or glow white in order to be considered incandescent.
The most common color mixing models are the additive primary colors (red, green, blue) and the subtractive primary colors (cyan, magenta, yellow). Red, yellow and blue are also commonly taught as primary colours, despite some criticism due to its lack of scientific basis.
Hue is the name of a color (red, yellow, and blue, etc.). Brightness and chroma refer to the intensity and strength of the color. A high chroma color is more pure and less greyed than a low chroma color. The lightness or darkness to a color is the value. Color also has the ability to work within our emotions. Given that, we can use color to ...
Blue in culture. Goblet from Mesopotamia, 1500–1300 BC glazed with Egyptian blue. This was the first synthetic blue, first made in about 2500 BC. The color blue has been important in culture, politics, art and fashion since ancient times. Blue was used in ancient Egypt for jewelry and ornament. [ 1] In the Renaissance, blue pigments were ...
Color. Color ( American English) or colour ( British and Commonwealth English) is the visual perception based on the electromagnetic spectrum. Though color is not an inherent property of matter, color perception is related to an object's light absorption, reflection, emission spectra, and interference. For most humans, colors are perceived in ...