What are the basic theoretical knowledge of color?

Article 1: There should be no more than three colors in the space.

Article 2: Gold and silver can be used as a foil with other colors.

Article 3: The best color gray scale of the home is: the wall is shallow, the ground is in the middle, and the furniture is deep.

Rule 4: Don't use overly warm colors in the kitchen.

Article 5: It is recommended that the color of the ceiling should be lighter than the wall or the same color as the wall.

Article 6: If the space is not enclosed, the same color scheme must be used; Different enclosed spaces can use different color schemes.

Primary colors: red, yellow, and blue. It is the most basic color, and it can theoretically be used to make any color.

Broadly speaking, there are more than these three primary colors, black, white, gold, and silver can not be synthesized by all colors, but because black and white are colored and colorless, gold and silver are mainly reflective colors, so they are generally not included in the color sequence for discussion. In chromic light, the primary colors are red, blue, and green. Red light + blue light + green light = white light.

Intermediate color: It is a mixture of two primary colors, namely orange, purple, green, red + yellow = orange, yellow + blue = green, blue + red = purple. Orange is close to red and yellow, green is close to yellow and nearly blue, purple is close to blue and nearly red, so the name "intercolor" in the middle of the meaning, but this "in" is difficult to find, always red components are red orange or red purple, blue components are mostly blue-green or blue-violet, can not find an impartial one.

Compound color: It is made by mixing two colors. If any two or more polychromates in the color wheel table are blended, a myriad of complex polychromats will be produced.

Strictly speaking, there is no absolutely pure grain color in the world, even pure gold has only one content, and there are impurities. Therefore, the name of the pigment is just a symbol, and the red of the same name produced by different manufacturers is not necessarily the same hue, that is, the pigments produced by the same manufacturer at different times may not be the same. Many bright colors cannot be matched with gouache pigments, such as vermilion, light green, violet, blue lotus, etc.

Dye-type pigments with high purity can be formulated with more vivid green, purple, orange and other colors, and their impurity content is also increased. If it is said that a large impurity content is a compound color, and if there is no impurity, it is not a compound color, then all the colors in the world are compound colors. On the contrary, the polychrome of the chromatic color is higher than the brightness of the primary color and the intercolor, and the primary, interchromatic, and polychromatic of the chromatic color can be adjusted into white light, and the more times it coincides, the brighter the color light is.

Same color: A color with white and black to form different brightness colors, they are all called the same color. When applying, it is necessary to open up the brightness gap of the color. The tonal combination gives a sense of serene elegance.

Similar colors (also known as neighboring colors): Colors within 90° in the color wheel table are called neighboring colors, and the application of similar colors gives people a feeling of rich colors and elegance.

Contrasting colors (also known as complementary colors and color contrasts): In the color wheel table, the colors corresponding to 180° are called complementary colors, and you are in contrast to each other, and the complementary hues are mixed into gray or dark gray (i.e., black).

1. Color of same kind: color of same kind refers to the same hue nature, but the chroma is different. (the color within the 15° angle of the hue ring), such as dark red and light red.

2. Adjacent color: The so-called adjacent color is the color that is adjacent to each other on the color band, such as green and blue, red and yellow are adjacent to each other. Between the neighboring colors, you often have me, and I have you.

For example: vermilion and orange, vermilion is mainly red, with a slight amount of yellow in it; Orange is predominantly yellow with a hint of red in it, and although they differ greatly in hue, they are visually relatively close. In the color wheel, all colors within the 60-degree range belong to the range of adjacent colors.

3. Complementary color: Among the three primary colors, any one color is the complementary color of the other two primary colors mixed in equal amounts. In the hue ring, the two colors at the diameter position complement each other.

There are three primary colors, namely red, yellow, and blue, which are units of color that can no longer be broken down. The colors produced by the matching of each two groups of the three primary colors are called intermediate colors, such as red and yellow are orange, yellow and blue are green, blue and red are purple, and orange, green, and purple are called intermediate colors. Red and green, orange and blue, yellow and purple are complementary colors.

4. Contrasting color: The color opposite (180 degrees diagonal) of each color in the hue ring is called"Contrasting colors (complementary colors).".Putting contrasting colors together can give a strong sense of repulsion.

If mixed together, it will bring out a cloudy color. For example, red and green, blue and orange, yellow and purple are contrasting colors.

Contrasting colors can also be defined in this way: two colors that can be clearly distinguished, called contrasting colors. Including color contrast, brightness contrast, saturation contrast, cold and warm contrast, complementary color contrast, color and achromatic contrast, etc.

5. Similar colors: The colors that are adjacent to each other within a 90-degree angle on the color wheel are collectively called similar colors. For example, red, red, orange, orange.

Yellow, yellow, green, green. Blue, bruised, purple, etc. are all similar colors. Similar colors are often used in color matching because the color contrast is not strong, giving people a sense of color, calm and harmony.

Red waves: 1, 8, 12, 13, 18, 19, 23, 24, 29, 30, 34, 35, 40, 45, 46.

Blue waves: 3, 4, 9, 10, 14, 15, 20, 25, 26, 31, 36, 37, 41, 42, 47, 48.

Green Mill Bridge Sidewave: 5, 6, 11, 16, 17, 21, 22, 27, 28, 32, 33, 38, 39, 43, 44, 49.

If there is no boundary between these three colors, red, blue, and green can be combined into other colors. Physicists distinguish according to wavelength or frequency f.

The frequency and intensity of electromagnetic waves can vary greatly, and in the range of frequencies that a person can feel (about 375 750thz), it is called visible light, and sometimes it is also referred to simply as light. If you list the intensities of each frequency of a light source together, you can get the spectrum of that light source.

The spectrum of an object determines the optical properties of the object, including its color. Different spectra can be received by humans as the same color. While a color can be defined as the sum of all these spectrums, different blind oaks see different colors and perceive different colors for different people, so this definition is quite subjective.

A blender has a surface that diffusely reflects light of all frequencies is white, while a surface that absorbs light of all frequencies is black.

Color is people's perception of light, so black is people's perception of no light, it can be said that black is not a real color disinfection.