![]() These regions are listed in order of increasing energy frequency and decreasing wavelength. The electromagnetic (or EM) spectrum is typically divided into seven different regions. What we define as visible light is just the wavelengths of electromagnetic radiation that are visible to the human eyes.Įlectromagnetic radiation is transmitted by particles or waves at various frequencies and wavelengths, and the range of wavelengths that radiation can be transmitted in is referred to as the electromagnetic spectrum. Electromagnetic radiation comes in different forms such as radio waves, ultraviolet radiation, infrared radiation, microwaves, and visible light. The Light SpectrumĮlectromagnetic radiation is everywhere in the entire universe. Therefore, in order to get a blue coloration from pigments, you would need to absorb the red and green light colors, which can be achieved by mixing magenta and cyan. Cyan absorbs red, yellow absorbs blue, and magenta absorbs green. The primary pigment colors are cyan, magenta, and yellow. Pigments don’t emit or produce light of a certain color, rather they get their colors by absorbing specific wavelengths of color. When talking about combining pigments together, such as when painting, the calculation is slightly different. “Blue is the only color that maintains its own character in all its tones.” - Raoul Dufy This is why when using digital paint programs, the values are given in RGB (Red, Green, Blue) format. The other primary colors of light are green and red. In terms of the light spectrum, blue is a primary color, which means that it is one of the base colors that exist in the universe and it cannot be created by combining different colors together. What two colors combine together to make the color blue? The answer to this question depends on whether you are talking about the blue which is part of the visible light spectrum, or certain pigments of materials that can be mixed together.
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