PDF Shades of Magenta (Magenta Orange Book 4)

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The shadow of an object appears to contain some of the complementary color of the object. For example, the shadow of a red apple will appear to contain a little blue-green. This effect is often copied by painters who want to create more luminous and realistic shadows. Also, if you stare at a square of color for a long period of time thirty seconds to a minute , and then look at a white paper or wall, you will briefly see an afterimage of the square in its complementary color.

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Placed side-by-side as tiny dots, in partitive color mixing, complementary colors appear gray. The RGB color model , invented in the 19th century and fully developed in the 20th century, uses combinations of red, green, and blue light against a black background to make the colors seen on a computer monitor or television screen.

In the RGB model, the primary colors are red, green, and blue. The complementary primary—secondary combinations are red — cyan , green — magenta , and blue — yellow. In the RGB color model, the light of two complementary colors, such as red and cyan, combined at full intensity, will make white light, since two complementary colors contain light with the full range of the spectrum.

Complementary colors

If the light is not fully intense, the resulting light will be gray. In some other color models, such as the HSV color space , the neutral colors white, greys, and black lie along a central axis. Complementary colors as defined in HSV lie opposite each other on any horizontal cross-section. For example, in the CIE color space a color of a " dominant " wavelength can be mixed with an amount of the complementary wavelength to produce a neutral color gray or white. A traditional color star developed in by Charles Blanc.

The traditional complementary colors used by 19th-century artists such as Van Gogh, Monet and Renoir are directly opposite each other.


The colors of the RGB color model , which uses combinations of red, green, and blue light on a black screen to create all the colors seen on a computer display or television. Complementary colors are opposite each other. RGB complementary colors magenta and green provide a high contrast and reinforce each other's brightness.

Red and cyan are complementary in the RGB color model. Blue and yellow are also complementary in the RGB model. Color printing, like painting, also uses subtractive colors, but the complementary colors are different from those used in painting. As a result, the same logic applies as to colors produced by light. Color printing uses the CMYK color model , making colors by overprinting cyan, magenta, yellow, and black ink. In printing the most common complementary colors are magenta—green, yellow—blue, and cyan—red.

Black is added when needed to make the colors darker.

Complementary colors - Wikipedia

The effect that colors have upon each other had been noted since antiquity. In his essay On Colors , Aristotle observed that "when light falls upon another color, then, as a result of this new combination, it takes on another nuance of color. In , in his treatise on optics, Isaac Newton devised a circle showing a spectrum of seven colors.

In this work and in an earlier work in , he observed that certain colors around the circle were opposed to each other and provided the greatest contrast; he named red and blue, yellow and violet, and green and "a purple close to scarlet. In the following decades, scientists refined Newton's color circle, eventually giving it twelve colors: the three primary colors yellow, blue, and red ; three secondary colors green, purple and orange , made by combining primary colors; and six additional tertiary colors, made by combining the primary and secondary colors.

In , the American-born British scientist Benjamin Thompson , Count Rumford — , coined the term complementary colors. While staying at an inn in Florence, he made an experiment with candles and shadows, and discovered that colored light and the shadow cast by the light had perfectly contrasting colors.

Tertiary color

He wrote, "To every color, without exception, whatever may be its hue or shade, or however it may be compounded, there is another in perfect harmony to it, which is its complement, and may be said to be its companion. The advantages that painters might derive from a knowledge of these principles of the harmony of colors are too obvious to require illustration.

In the early 19th century, scientists and philosophers across Europe began studying the nature and interaction of colors. The German poet Johann Wolfgang von Goethe presented his own theory in , stating that the two primary colors were those in the greatest opposition to each other, yellow and blue, representing light and darkness. He wrote that "Yellow is a light which has been dampened by darkness; blue is a darkness weakened by light. According to Goethe, "yellow 'demands' violet; orange [demands] blue; purple [demands] green; and vice versa".

At about the same time that Goethe was publishing his theory, a British physicist, doctor and Egyptologist, Thomas Young — , showed by experiments that it was not necessary to use all the colors of spectrum to create white light; it could be done by combining the light of just three colors; red, green, and blue. This discovery was the foundation of additive colors , and of the RGB color model.

He also found that it was possible to create virtually any other color by modifying the intensity of these colors. Specially if you talk with your printer guy about it.. Hi guys Thanks so much for that! Is that going to be ok? Or am I getting different colours?


Those are hexachrome colors; the pantone equivilents are process blue and rhodamine red. I just looked at the pantone book and they are the same. That sounds really weird. I have no color book nearby here at home, but I can say pretty sure that rhodamine red and specially process blue are not like magenta and cyan And hexacrome has nothing to do with this case. Very hard to separate but gives you a beatifull gamut when succeed.

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