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O azul é uma das três cores-luz primárias (ciano), e uma cor-pigmento primária. Seu comprimento de onda é da ordem de 455 a 492 nanômetros do espectro de cores visíveis. O azul costuma estar associado à frieza, depressão, monotonia. Por isso mesmo, também à paz, à ordem, à harmonia. [ 1]
The color defined as blue in the RGB color model, X11 blue, is the brightest possible blue that can be reproduced on a computer screen, and is the color named blue in X11. It is one of the three primary colors used in the RGB color space, along with red and green.
Blue is one of the colors of the rainbow that people can see. It is one of the primary colors (colors that can be mixed with other colors) of light , along with red and green . Apart from indigo and violet, it has the shortest wavelength of colors in the rainbow (about 470 nanometers ).
History and art. Ancient. Close-up of the blue, lapis lazuli inlays used for the irises in the Statue of Ebih-Il, dating to the twenty-fifth century BC, discovered in the temple of Ishtar at Mari. Blue was a latecomer among colours used in art and decoration, as well as language and literature.
9 de mar. de 2024 · Blue, in physics, light in the wavelength range of 450–495 nanometers in the visible spectrum. In art, blue is a color on the conventional wheel, located between green and violet and opposite orange, its complement. Pigments for blue have come from a variety of sources, including azurite, ultramarine, and indigo.
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 .