White, gray and black colors are called Achromatic, and those that have a color cast, called chromatic. All we can distinguish chromatic on three grounds. These signs are the hue (tint), brightness, and Saturation (Intensity or strength of color). Hue is the name of the color (red, blue, green, etc.), lightness - this is what we perceive to darker or lighter color or that of another. Saturation characterizes the degree of difference from the color gray, or the extent of its proximity to the pure spectral colors. Achromatic colors differ by only one sign - in brightness. If you mix white and black paint different proportions, you can get a large number of gray shades, from pure white to black. This is another scale - achromatic (colorless).
Chromatic colors can be mixed with achromatic. For example, if a red add color gray (achromatic color), the gray does not change its hue, it would still be red, but with an admixture of achromatic. If you take the silver, the same brightness as the red, it will not change and lightness resulting in red, but in any event, change one of the signs of chromatic color, its saturation. From the admixture of an achromatic color, chromatic color will be less intense. The smaller of the mixture will be achromatic, the richer will be the chromatic color, and vice versa, the more we stretch ahromatichekogo, the less saturated chromatic color will. Thus achromatic colors in mixed with the chromatic influence the effect of chromatic colors of flowers. Chromatic colors are divided into warm and cold.
To warm colors usually referred red-yellow part of the spectrum, and the cold blue-blue part of it. Purple and green hues are intermediate, because depending on the combinations in different cases that may relate to a warm to cold. As well, depending on the percentage in mixtures of warm and cool colors are present in green or violet, they can become warmer or colder.
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