For example, yellow light is seen when all blue light is removed from white light, magenta when green is removed, and cyan when red is removed. This is because each one can be formed by subtracting one of the primary additives (red, green, and blue) from white light. The complementary colors (cyan, yellow, and magenta) are sometimes alternatively referred to as the subtractive primaries. Primary Subtractive Colors Examine how the primary subtractive colors combine to form the primary additives, as well as black, the absence of all color. In the same way cyan (green plus blue) is the complement of red, and magenta (red plus blue) is the complement of green light. For instance, yellow (red plus green) is the complement of blue because when the two colors are added together white light is produced. The colors cyan, magenta, and yellow are commonly termed the complementary colors because each complements one of the primary colors, meaning that the two colors can combine to create white light. Similarly, equal portions of green and red light produce the color yellow, and equal portions of red and blue light yield the color magenta. Primary Additive Colors Explore how the primary additive colors interact with one another to form new colors.Īs illustrated by means of the overlapping color circles in Figure 1, if equal portions of green and blue light are added together, the resultant color is cyan. ![]() Moreover, adding equal amounts of red, green, and blue light produces white light and, therefore, these colors are also often described as the primary additive colors. All other colors of the visible light spectrum can be produced by properly adding different combinations of these three colors. ![]() The colors red, green, and blue are classically considered the primary colors because they are fundamental to human vision. All of the wavelengths present in visible light form colorless white light when they are combined, but can be refracted and dispersed into their individual colors by means of a prism. This small span of electromagnetic radiation is the sole source of color. The human eye is sensitive to a narrow band of electromagnetic radiation that lies in the wavelength range between 400 and 700 nanometers, commonly known as the visible light spectrum. ![]() Molecular Expressions: Science, Optics, and You: Light and Color - Primary Colors
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