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ROYGBIV is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo, and violet. When making an artificial rainbow, glass prism is used, but the colors of "ROY-G-BIV" are inverted to VIB-G-YOR". There are several mnemonics that can be used for remembering this color sequence, such ...
Viola sororia ( / vaɪˈoʊlə səˈrɔːriə / vy-OH-lə sə-ROR-ee-ə ), [ 5] known commonly as the common blue violet, is a short-stemmed herbaceous perennial plant native to eastern North America. It is known by a number of common names, including common meadow violet, purple violet, woolly blue violet, hooded violet, and wood violet.
Violet is at one end of the spectrum of visible light, between blue light, which has a longer wavelength, and ultraviolet light, which has a shorter wavelength and is not visible to humans. Violet wavelengths are between approximately 380 and 435 nanometers. Violet objects often appear dark, because human vision becomes less sensitive at ...
Periwinkle is a color in the blue and violet family. Its name is derived from the lesser periwinkle or myrtle herb ( Vinca minor) which bears flowers of the same color. The color periwinkle is also called lavender blue and light blue violet. [ 2] The color periwinkle may be considered a pale tint of purple-blue in the Munsell color system, or a ...
The downward-pointing black triangle used to mark individuals considered "asocial". The category included homosexual women, nonconformists, sex workers, nomads, Romani, and others. The downward-pointing pink triangle overlapping a yellow triangle was used to single out male homosexual prisoners who were Jewish.
RGB color model. The RGB color model is an additive color model [ 1] 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 additive primary colors, red, green, and blue.
Color of chemicals. The color of chemicals is a physical property of chemicals that in most cases comes from the excitation of electrons due to an absorption of energy performed by the chemical. The study of chemical structure by means of energy absorption and release is generally referred to as spectroscopy .
The color Japanese violet or Sumire is shown at right. This is the color called "violet" in the traditional Japanese colors group, a group of colors in use since beginning in 660 CE in the form of various dyes that are used in designing kimono. [20] [21] The name of this color in Japanese is sumire-iro, meaning "violet color".