What colors are blue and red?

What color is blue and red? There are all kinds of colors in our life. As we all know, all colors can be made of red, yellow and blue. It means that as long as you mix them in a certain proportion, you can match the other colors you want. So what color is blue plus red?

What color is blue and red? 1 is purple.

The ideal three primary colors of pigment should be magenta (bright rose red), yellow (lemon yellow) and cyan (lake blue), because the mixed color range of magenta, yellow and cyan is much wider than scarlet, medium yellow and blue, and can be obtained by subtractive method:

Magenta+yellow = red (white-green-blue);

Green+yellow = green (white light-red light-blue light);

Cyan+magenta = blue (white-red-green);

Magenta+cyan+yellow = black (white-green-red-blue).

A problem can be seen from the above two sets of overlapping color mixing diagrams:

The three primary colors of additive mixing are only the three primary colors of subtractive mixing, and the three primary colors of subtractive mixing are only the three primary colors of additive mixing.

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Three-color light model (English: RGB color model), also known as RGB color model or red, green and blue color model, is an additive color model, which adds red, green and blue colors in different proportions to produce various' colored lights'.

The main purpose of RGB color model is to detect, represent and display images in electronic systems (such as televisions and computers), but it is also used in traditional photography. Before the electronic age, based on human perception of color, RGB color model has a solid theoretical support.

RGB is a device-dependent color space: different devices detect and reproduce specific RGB values differently, because color substances (fluorescent agents or dyes) and their individual response levels to red, green and blue vary from manufacturer to manufacturer, and even the time of the same device is different.

What color is blue and red? Different proportions of red and blue produce different purples.

Red, yellow and blue are one of the three primary colors, and different mixtures of the three colors produce colorful colors. What colors can red and blue set off? That's purple.

According to the different proportions, although red and blue can turn purple in theory, the composition is uncontrollable, good. If it is one to one, it is pure purple, light red and light blue are lavender, and pure red and pure blue are pure purple. If there is a lot of red, it is reddish purple, and some people say it is pink. In short, different purples will be adjusted according to different proportions.

As mentioned above, a lot of red and a little blue can set off red and purple, and a lot of blue and a little red can set off blue and purple. Anyway, blue and red can only set off purple. If you want other colors, you have to add yellow, one of the three primary colors. Red, blue and yellow can set off most colors, and almost all colors in art are set off with these three colors.

The color changes of components that gradually increase from blue to red are: red, magenta, purplish red, purple, purplish blue, and blue-purple. On the contrary, gradually adding red and blue ingredients will not be mentioned, just the opposite.

Why can red and blue set off purple?

Red and blue can set off purple. Why? The most scientific explanation is that there are three kinds of human cones, namely red, yellow and blue, so simply speaking, these three colors contain all the color ranges, so in theory, these three colors can bring out various colors, which is why red and blue can bring out purple.

Of course, this is only the simplest explanation. It is also said that because the three primary colors of color light are red, blue and yellow, and the three primary colors of pigments are also red, blue and yellow, red, blue and yellow can bring out various colors, and red and blue can bring out purple.

So why can red and blue be called purple? Is there a detailed explanation? The answer is yes. Here I briefly introduce the three primary colors of art: the three primary colors of art are red, yellow and blue, and the six-character system composed of the three primary colors of art is red, yellow, blue, orange, green and purple, which gives people a practical color feeling and conforms to objective reality.

This is why three primary colors can bring out different colors, and why blue and red can bring out purple. Of course, there are many theoretical supports, such as color system, cold and warm, hue, solid color, turbid color and so on. In a word, red and blue can set off purple.

What color is blue plus red? 3 The formulas of various colors are as follows:

Scarlet+black = brown.

Sky blue+yellow = grass green, light green

Sky blue+black+purple = light blue purple grass green+a little black = dark green.

Sky blue+black = light gray blue sky blue+grass green = turquoise.

White+red+black small amount = stone red.

Sky blue+black (small amount) = dark blue white+yellow+black = mature brown

Rose red+black (small amount) = deep red

Red+yellow+white = the color of the character.

Rose+white = pink rose.

Blue+white = pink blue

Yellow+white = beige rose+yellow = scarlet (vermilion, orange, gamboge)

Scarlet+black = brown.

Sky blue+yellow = grass green, light green

Sky blue+black+purple = light blue purple

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Matters needing attention in color mixing:

1. Be careful when mixing colors. Generally, samples are taken first, and the initial amount of paint is prepared first, and then the details are prepared according to the sampling results. Set the secondary color and secondary color in a small container.

2. First add the main color (the color with large dosage and low coloring power), then slowly and intermittently add the dark color (or color matching) with high coloring power, and keep stirring to observe the color change at any time.

3. In terms of color matching, the colors of paint and dry film will be slightly different. The colors of all kinds of paints on wet films are generally light, and when the paint dries, the colors become darker. Therefore, if the sample is a dry sample, the color matching paint needs to wait for drying before color comparison; If the sample is wet, you can drop a drop in the matching pigment to see if the two colors are the same.

4. In the process of color matching, what additives should be added, such as desiccant, curing agent and diluent, so as not to affect the color.

The ideal three primary colors of pigment should be magenta (bright rose red), yellow (lemon yellow) and cyan (lake blue), because the mixed color range of magenta, yellow and cyan is much wider than scarlet, medium yellow and blue, and can be obtained by subtractive method:

Magenta+yellow = red (white-green-blue);

Green+yellow = green (white light-red light-blue light);

Cyan+magenta = blue (white-red-green);

Magenta+cyan+yellow = black (white-green-red-blue).

White light produced by mixing any two colors of light in a proper proportion is complementary color. For example, red and light turquoise, orange * and cyan, * and blue, green and purple are complementary colors.

When two complementary colors are mixed, a new intermediate color will be produced between them. For example, red and yellow mix to produce orange, and blue and red mix to produce purple. The hue of the intermediate color is more than one color, and the saturation depends on the position of the two colors in the spectral trajectory. The closer you get, the more saturated you are.