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What are the Properties Of Red Color?

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Red is a color perceived by the photoreception of light whose dominant wavelength measures between 619 and 780 nm. It resembles the coloration of vertebrate arterial blood.

Red remains are considered a warm color related to fire and incandescence. Classic red can stay on the box to the right above; the values ​​ below correspond to the same. The color denomination “red” covers the set of colorations similar to the standard: reddish.

Properties Of Red

As a psychological color: primary, warm

Red is one of the four primary psychological colors, yellow, green, and blue. In addition, it is considered a warm color, sideways with orange, yellow, and all the colorations that tend to these.

As A Subtractive Color: SecondaryAs A Subtractive Color: Secondary

Production of colors from the primaries of the subtractive system. Mixing cyan, magenta, and yellow gives secondary colors red, green, and blue, and by successive mixing of all the other colors.

In the subtractive color synthesis system, where colors are created by mixing pigments or dyes (paints, dyes, inks), the primary colors are cyan, magenta, and yellow. Red, along with green and blue, are the secondary colors in this system, meaning that when working with pigments of any kind, you must mix two of the subtractive primary colors to get red.

Process printing uses subtractive primary colors with the addition of black. Hence, a four-color color remains described by the percentage of ink of apiece of these four colors that enter its composition. For example, since the acquisition of magenta and yellow forms red, a deep red printed area will be composed of C=0 (0% cyan), M=100 (100% magenta), Y=100 (100% yellow), and K=0 (0% black). See CMYK.


In this chemosynthesis system, the complementary color of red is cyan.

As A Subtractive Color In Plastic Arts: Primary

For a long time, red had the status of subtractive primary color. It has been part of almost all groups of basic, primary colors that different scholars of the subject have proposed throughout history. In the 19th  century, for example, the type of red most used as a primary color was carmine or crimson. Newton’s studies on the nature of light and color gave rise to numerous theories, which are not always correct. In the early eighteenth century, some painting treatises had adapted the circle of colors created by Newton to the needs of pictorial art and pointed out that the three primary colors were red, yellow, and blue of the Newtonian ring. The practice of using this triad of primaries in painting continues today.

Today, after several centuries of pigment development and color studies, the three optimal subtractive primary colors remain considered to be cyan, magenta, and yellow. Still, cyan is generally preferred in the art for technical and traditional reasons. Continue to use the “old” primaries.


In this chemosynthesis system, the complementary color to red is green.

As Additive Color: PrimaryAs Additive Color: Primary

In the additive system of color synthesis, in which colors remain made by mixing colored light rather than pigments, red is a primary color, green and blue. When working with colored light, you have to combine those three colors in different proportions to get all the others. The lightness remains reduced or increased to create the light and dark tones.

Although, This additive system of light colors is what monitors and televisions use to produce blooms. In this system, a flush remains described with numerical values ​​for each of its components (red, green, and blue), indicating red with “R,” green with “G,” and blue with “B.” On a scale of values ​​from 0 to 255, pure additive red remains expressed as R=255 (red at maximum value), G=0 (no green), and B=0 (no blue). See RGB.

This red was one of the first colors that personal computers could reproduce after moving away from monochrome in the early 1980s.


In this chemosynthesis system, the complementary color of red is cyan.

Spectral Red

Spectral red is the region of red light in the electromagnetic spectrum that the human eye is capable of perceiving. The wavelength of red light is around  645-700nm; frequencies lower than red—and therefore longer wavelengths—are called infrared and are not visible. Thus, the color red corresponds to the lowest frequency of light discernible by the human eye.


In nature, red plays an essential role in animals’ warning coloration, also called aposematic. Certain species use this color—usually in combination with black or other contrasting colors—to warn predators of its toxicity or bad taste. Also,  The red used in these cases is intense and appropriate to remain distinguished in the natural environment, where green, blue, and brown are more frequent.

Blood And Other Reds In Nature

Oxygenated blood is red due to the presence of oxygenated hemoglobin.

When used to describe natural animal coloration, “red” generally refers to a brown, reddish, or ginger color. In this sense, it remains used to describe the reddish-brown coat colors of dogs and cows and in the names of various animal species or breeds such as the fox, red squirrel, red deer, robin, Calidris canutus, redstart royal, red-winged thrush, red setter, Devon red cattle, etc.

When used for flowers, “red” often refers to purple (red clover, red helleborine) or pink (red valerian) colors.

In The Newtonian Spectrum And The Rainbow: The First Color

Although, In the West, the traditional interpretation of rainbow chromatism holds that the rainbow contains seven colors, corresponding to the seven colors into which Newton divided the spectrum of visible light. Also, Red remains considered the first visible color in the Newtonian range and the rainbow.


Red and green and blue are the secondary colors in this system. Means that when working with pigments of any kind, to get red. You must mix two of the subtractive primary colors.

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