In the color system, what color has the lowest brightness

Blue-violet brightness is the lowest.

Brightness refers to the degree of lightness and darkness of the hue, which shows the difference between light and dark of the hue, or the sketch relationship of the color block. Each hue has its own range of spectral brightness, with white increasing brightness and black decreasing. Each solid color has its own luminosity.

Yellow brightness is the highest, blue-violet brightness is the lowest, and red and green are intermediate brightness.

Brightness has relative independence in color, and can exist independently from hue and purity. The other two elements of the three elements of color are hue

Purity, it must depend on lightness.

Extended Materials. Color brightness contrast.

Short tone: The combination of the brightness difference of the main color of the picture within 3 levels, and the brightness contrast is weak, which is called short tone, also known as the weak contrast of brightness.

Features: soft, blurry, weak sense of light, poor body feeling, weak sense of rhythm, elegant and stable display.

Middle tone: The combination of the brightness difference of the main color of the picture within 5 levels, and the brightness contrast is moderate, which is called the middle tone, also known as the brightness of the medium contrast.

Characteristics: steady, moderate, will also appear average, mean.

Long tunes. The brightness difference of the main color of the picture is a combination of more than 5 levels, and the brightness contrast is strong, which is called long tone, also known as the strong contrast of brightness.

Features: The image is distinct, clear, and rich in light, body sense, showing vitality, strength, sometimes it seems stiff, hollow, the brightness tone and brightness contrast are combined, you can get the nine major keys of brightness.

Color brightness.

Brightness refers to how bright a color is. Various colored objects produce the intensity of light and dark colors due to the difference in the amount of light they reflect. There are two cases of color lightness:

One is the same hue with different brightness. The same color appears bright under strong light, and dark and blurry under low light; The same color can also be mixed with black or white to produce a variety of different levels of light and dark. The second is the different brightness of various colors.

Each solid color has its own luminosity. Yellow brightness is the highest, blue-violet brightness is the lowest, and red and green are intermediate brightness. The brightness change of color often affects the purity, for example, the brightness decreases after red is added to black, and the purity is also reduced; If red and white are added, the brightness increases, but the purity decreases.

The rich and diverse colors can be divided into two categories: colorless and colored, and the colors with color have three basic characteristics: hue, purity (also known as saturation, saturation), and brightness. In color science, it is also known as the three elements of color or the three properties of color.

Colors with a saturation of 0 are colorless.

1.Brightness. 2.Color brightness, also known as the brightness of a color.

3.Color brightness is one of the three elements of color (hue, lightness, and purity).

4.Different colors will have differences in light and dark, and the same color will also have changes in light and shade.

5.For example, yellow colors such as dark yellow, medium yellow, light yellow, and lemon yellow are not the same in brightness, and red colors such as purple red, dark red, rose red, bright red, vermilion, and orange are also different in brightness.

6.The different changes in the light, shade, and shade of these colors are another important feature of the color, the change of brightness.

7.Extended Information: Principle: Various colored objects produce the intensity of light and dark colors due to the difference in the amount of light they reflect.

8.There are two kinds of brightness in a color: different brightness of the same hue.

9.The same color appears bright under strong light, and dark and blurry under low light;

10.The same color can also be mixed with black or white to produce a variety of different levels of light and dark.

11.Different brightness of various colors.

12.Each solid color has its own luminosity.

13.Yellow brightness is the highest, blue-violet brightness is the lowest, and red and green are intermediate brightness.

14.The brightness change of color often affects the purity, for example, the brightness decreases after red is added to black, and the purity is also reduced;

15.If red and white are added, the brightness increases, but the purity decreases.

16.The hue, purity and brightness of color are inseparable, and all three factors must be considered when applying.

Lightness. Brightness refers to how light and dark a color is. The color of the hue is the same, and the light and shade may be different. For example, both crimson and pink contain red, but the former is darker and the latter is lighter.

Brightness is the perception of the light source and the brightness of the surface of an object, and is mainly a visual experience determined by the intensity of light. In general, the stronger the light, the brighter it looks; The weaker the light, the darker it looks.

Degree of reflexivity. The highest is the height of the yellow cover, and the lowest is purple, because of this, the yellow has a high reflectivity to light, and the brightness is higher. Color brightness is one of the three elements of color, and the three elements of color are hue, brightness and purity. Specifically, it refers to the color with shades, light and dark changes. <

The brightness of a color refers to how reflective a color is. The highest is yellow, the lowest is purple, so the yellow has a high reflectivity of light and a higher brightness. Color brightness is one of the three elements of color, and the three elements of color are hue, brightness and purity.

Specifically, it refers to the color with shades, light and dark changes.

Answer]: A knowledge point: the concept of brightness.

Brightness refers to the brightness and darkness of color light, which is equivalent to the intensity of color. The light and smooth color indicates high brightness, and the color is believed to be dark and low. According to the above explanation, it is known that the brightness of items b, c and d items are lower than those in item a, which is excluded.

Therefore, item A is correct.