How to know colors?

The world of newborn babies is black and white. As the baby's visual system matures, it will have a sensitivity to color by three or four months. Babies will enjoy the world of beauty by recognizing and perceiving colors.

Wave Equation: The wave equation is an equation used to describe light, so by solving the wave equation we should be able to get information about the color. The wave equation for light in a vacuum is given below

Here is the speed of light, is the coordinates of space, is the coordinates of time, is a function of describing light, and the subscript indicates the partial derivative. A fixed point in space becomes a function of time. With the Fourier transform, we can get the amplitude of each frequency.

From this we can get the intensity of this light at each frequency. In this way, we can get a spectrum from the wave equation.

Monochrome and mixed colors:

The spectrum of most light sources is not monochromatic, and their light is made up of a mixture of light of different intensities and frequencies. The human eye perceives the color of many such mixtures of light as the same as the color of the light of a monochromatic light source.

For example, the orange in the above ** is actually not a monochromatic light with a frequency of 500thz, in fact it is composed of a mixture of red and green light (the monitor cannot produce a monochrome orange). Due to the physiology of the eye, we cannot distinguish between these two colors of light.

There are also many colors that cannot be monochromatic, because there is no such monochromatic color. For example, black, gray, and white are such colors, as are flesh and khaki.

In fact, the most interesting thing to know about color is to devote yourself to nature, this season is especially suitable, spring flowers are blooming, and the outdoor colors are bright, one of the things I often do is to know the color of things in nature.

But simply saying that the leaves are green and the chrysanthemums are yellow, in fact, for the baby, it is still abstract, so what we often do is to take the colors home, collect some different colors, and go home to match them with different color color cards.

The basic colors of the color are red, orange, yellow, green, blue, violet and three primary colors, and the others are blended on the basis of this color.

There are many types of colors, in addition to black, white and gray, there are also red, yellow, and blue primary colors, and there are many, many colors, and the color types and classifications in each field are different.

You can buy some cards that are colored and have specific instructions on them.

The color is very yellow, and the seven colors of white, green, blue, and purple are the most basic and should be distinguishable.

There are three colors, red, yellow, green, and also three primary colors, and you can tune up any color you want to see.

There are 12 common colors. It can be recognized with a watercolor brush or a drawing brush.

The colors are colorful, sometimes a dozen colors.

The variety of colors is innumerable, and no scientist can count them.

There are many kinds of colors, do you say colorful, there are too many colors in the world.

The colors are very well divided, I don't know what you mean.

Twelve colors: red, orange-red, orange, orange-yellow, yellow, yellow-green, green, blue-green, blue-violet, purple, purple-red.

Data Development:

Color is a visual effect on light that is produced through the eyes, the brain, and our life experiences. Human perception of color is not only determined by the physical properties of light, for example, human perception of color is often affected by the color of the circumference. Sometimes people also refer to the physical properties of matter producing different colors directly as colors.

The red color is visually shocking, making people feel active, warm, vigorous and vibrant. In people's concepts, red is often associated with auspiciousness, good luck, and festivity, and it has naturally become a common color for festivals and celebrations.

At the same time, red is easily associated with blood and artillery, and there is a sense of life, a sense of beating, and the smell of danger and horror of blood. Fire extinguishers and fire trucks are all red.

Yellow is a gentle and delicate color with a strong sense of warmth that makes people feel pleasant and pure. Withered plants tend to be yellowish in color, and have associations of aging, old age, and twilight, and can also remind people of highly nutritious egg yolks, cream, and other foods.

However, yellow is also associated with disease and weakness, and the decay and withering of plants are also associated with yellow. Therefore, yellow makes people feel empty, poor and unhealthy.

Orange has the advantages of both red and yellow, and the color is soft, making people feel warm and powerful. Some ripe fruits tend to be orange, and nutritious foods (bread, pastries) are also mostly orange. Therefore, orange is easy to cause nutritious and sweet associations.

It is a color that is easy to be accepted by people. But in certain countries and regions, orange is associated with fraud and jealousy.

Blue is an extreme cool color, with flexible and sane properties, which happens to correspond to red. Blue tends to produce a sense of clarity, detachment, and detachment from the world. Dark blue breeds feelings of melancholy, emptiness, and sentimentality, as well as feelings of strangeness and loneliness.

Green has the sensitivity of blue and the warmth of yellow, and it is consistent with the life of the human eye, so it has the effect of balancing the human mood and is an easily accepted color. The green color is consistent with the color of some unripe fruits, which can cause a sour and bitter taste. Dark green tends to produce a sense of silence, negativity, and indifference.

The three primary colors refer to the three basic colors that can no longer be decomposed in the color, and we usually call the three primary colors, namely magenta, yellow, and cyan. The three primary colors can be mixed to create all the colors, and at the same time they are added to black, and black, white, and gray belong to the colorless system.

Exciting and calm colors, bright warm colors such as red, orange and yellow make people excited; Turquoise, bruising, and cyan give people a sense of calm.

Light colors and heavy colors, light colors give people a light feeling, and low brightness and heavy dark colors give people a dull feeling. The heavy color is on the bottom and the light color is on the top, which makes people feel stable; Light colors on the bottom and heavy colors on top give people a sense of instability.

Bright and simple colors, bright and pure colors, give people a gorgeous feeling; Colors with low brightness and low purity give people a simple and unpretentious feeling.

Forward and backward colors, colors on the same plane, some colors make people feel prominent, and some colors give people the feeling of retreating backwards. The former is called the forward color, the latter is called the backward color, and the general warm colors such as red and yellow have a sense of progress; The cold color is like green, and green has a sense of retreat. Small patches of dark color on a shallow base feel backwards, while small patches of light color on a dark base give the opposite feeling.

The walls and roof of the room faded after painting, and the room felt spacious and tall.

Expansion and contraction, some colors look bigger than they actually are, and some look smaller than they actually are. The former is called an expanded color, and the latter is called a shrinking color. The expansive color is the same as the forward color, and the warm and bright colors appear larger; The shrinkage color is the same as the receding color, and the cool color and dark color appear smaller.

The black on the white background appears small; The white letters on the black background appear large. People who wear dark, cold-colored clothes appear thin; People in light, warm-colored clothes look fat.