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In common English usage, purple is a range of hues of color occurring between red and blue. However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among native speakers of English.
In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, some of which humans perceive as similar to violet.
Even among many modern speakers within the English-speaking world there is confusion about the terms purple and violet. The blue-dominated spectral color beyond blue is referred to as purple by many speakers in the United States, but this color is called violet by many speakers in the United Kingdom.
Violet refers to any colour perceptually evoked by light with a predominant wavelength of roughly 380–450 nm. Tones of violet tending towards the blue are called indigo. Purple colors are colors that are various blends of violet or blue light with red light.
According to some speakers of English, purple is simply a combination, in various proportions, of two primary colors, red and blue. [48] According to other speakers of English, the same range of colors is called violet.
- Double-slit experiment - Wikipediawikipedia.org
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The color lavender might be described as a medium purple, a pale bluish purple, or a light pinkish-purple. The term lavender may be used in general to apply to a wide range of pale, light, or grayish-purples, but only on the blue side; lilac is pale purple on the pink side.
In the traditional RYB color model, the complementary color pairs are red – green, yellow – purple, and blue – orange. Opponent process theory suggests that the most contrasting color pairs are red–green and blue–yellow. The black - white color pair is common to all the above theories.
The theory of color includes the color complements; color balance; and classification of primary colors (traditionally red, yellow, blue ), secondary colors (traditionally orange, green, purple) and tertiary colors. The study of colors in general is called color science .
Primary colors of the RYB color model: red, yellow, and blue, mixed to form colors orange, green, and purple. Under the modern definition (as even combinations of a primary and a secondary color), tertiary colors are typically named by combining the names of the adjacent primary and secondary color.
Iris is an ambiguous color term, usually referring to shades ranging from blue-violet to violet. However, in certain applications, it has been applied to an even wider array of colors, including pale blue, mauve, pink, and even yellow (the color of the inner part of the iris flower).
