Getting started painting works, any layman should a little bit about the effect of light on color, because of these characteristics depends on the correct selection of shade for your walls, floors, ceilings. It often happens that the paint that is in the store looked interesting and fresh, looks pale and inharmonious, being deposited on the surface in the location of the apartment. Our article will allow you to get a more accurate representation of the color science and its interaction with light.
Let's start with definitions. Light is radiant energy, which produce a variety of sources, both natural (the sun, moon, stars) and artificial (electric lamp and candles). Color in turn is obtained by reaction of the subject to light waves and naturally depends on the spectral composition of the radiation.
Thus, the ability of the subject to absorption, transmission or reflection of the rays is the basis for determining its apparent color.
In bright light you can see the original color of the object, however, as a rule, it is rare to whom and when it is possible. Because, despite the relative constancy, natural color looks a little different to the human eye due to the influence of several factors:
Effects of contrast "neighbors";
- Physical properties of the surface of the object;
- Air environment;
- The distance that removed the object from the observer;
Power and spectral composition of the direct and reflected rays.
That is, we certainly know that the grass is green and red strawberries, but the same strawberry will look completely different from close range on a Sunny day and watch from a distance on a rainy afternoon.
In fact, the human eye is unable to distinguish between the pure color of each of the objects we see with numerous color shades.
Two categories of color
Achromatic color, which include white, black and gray, do not have color and differ from each other in brightness. White color even with a faint yellowish tinge will refer to chromatic categories.
Chromatic color - spectral color with all the intermediate shades.
For separation of chromatic colors, there are several key criteria:
- Color tone - characteristic color, which is defined as the wavelength corresponding to the dominant monochromatic radiation.
- Lightness - tone characteristic, the figures range from pure white to spectral color.
- Saturation is an indicator of the concentration of pure monochromatic colors in the light stream.
Another important characteristic of color is its visibility. Visibility can be:
- Absolute
- Relative (color, marked not by nature, but by highlighting the lightness of the background, immediate environment)
The visibility of color need to consider wanting to draw attention to a particular part of the song of the interior. Most notable are rich orange-red color, blue color is the least shall be issued from this point of view.
Colour from light
Color luminous flux falling on the surface of the object logically affect its color. Of course, things change shades according to certain rules:
- The subject, the color of which falls into one tone with light flow, increasing color saturation;
Colors opposite hue become less saturated and darker;
- Other colors slightly colored in the color of the lighting.
Accordingly, as artificial light electric Lam is yellow-orange, it gives the appropriate color to all objects in the area of his achievements:
Red color is more bright and saturated;
Yellow in addition to lighten loses saturation;
Orange color brightens, but becomes red shades;
Blue, blue, purple and sea green dark - blue green, blue is less saturated, and purple seems to be too red.
- Red light of the sun at sunset or sunrise gives all the colors of the respective shades. Green things dark, red logical acquire a special saturation.
The color change affects not only the chromaticity of the light flux and the intensity of illumination:
Bright lighting obese" items;
- Blinding light colors things in yellow;
- In dark color spaces less and less distinct, with blue becoming the most bright and almost indistinguishable from white.
Source:
DIY
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