Color analysis of visual design: expansion color and shrinkage color

Expansion color and shrinkage color

Have you ever heard of expansive and shrinking colors? Warm colors like red, orange, and yellow can make objects look bigger than they really are. and blue, blue-green and other cold colors, you can make objects look smaller than the actual.

Color on the size of the object, including hue and lightness two factors. Warm and bright colors have a diffusion effect, so the object appears large, while the cool and dark color has cohesion, so the object appears small. Different lightness and warm and cold are sometimes shown by contrast.

Application: Red-like pink This is a high degree of color expansion color, you can enlarge the object. and cold color in the lower lightness of the colors for contraction color, you can narrow the object. The low color of navy blue is the shrinking color, so the blue object looks smaller than it really is.

The temptation of black silk

A black with a lightness of zero is a representation of the contraction color. For example, seeing a female colleague wearing black stockings, we would think that her legs are thinner than usual, and that is the magic of color. In fact, only female colleagues use the black shrinkage effect, so that their legs look thinner than usual. Visible, as long as mastered the color psychology, can make oneself become more perfect.

More scientific analysis

We have been in junior high school physics, the same light material on different wavelength rays of the refractive index is different , so when the various wavelengths of light at the same time through the lens, the set point does not all fall on the retina plane, so the image on the retina of the clarity of a certain difference. The long wavelength of warm color image is not accurate, so the image formed on the retina blurred, seems to have a diffusion, short wave long cool color image is more clear, seems to have some kind of shrinkage. Therefore, we usually stare at the red, time will produce vertigo phenomenon, the image of the scene blurred like the feeling of expansion movement. If we look at the cyan, there is no such phenomenon. If we compare red with blue, because of the effect of color at the same time, the area of the wrong view of the phenomenon will be more obvious.

Hue ring under CMYK color model

Color expansion, contraction is not only related to the wavelength (hue), but also related to lightness. Any optical imaging system, including the eyes, will inevitably produce spherical aberration (for short), bright objects in the retina of the image of the contour appears to have a circle of aperture around, so that the object in the retina of the image contour enlarged, it seems to feel larger than the physical.

The imaging situation of a point light source in a system of negative spherical aberration (upper), aspheric aberration (medium), and positive spherical aberration (bottom).
The left side of the image is in the focus of the imaging, right is outside the focus of imaging.

such as electricity shiny tungsten filament than electricity before the wire seems to be much thicker, physiological physics called this phenomenon as "light infiltration" phenomenon. "In the Science of color", Goethe pointed out: "The same size of two dots, black dots on the white background is smaller than the white dots on the black background of 1/5." ”

Application: the width of the same printing black and white stripe cloth, feeling on the Bai is always better than black stripes, the same size of black and white square lattice cloth, white squares than black squares slightly larger. Supermarkets, small commodities, packaging to make it conspicuous some, it is advisable to use bright light; If you want it to appear noble and exquisite, it is advisable to use a calm dark or black. In order to enlarge the interior space sense of the building or the transportation, the color design should adopt the white, shallow rice, ivory and so on elegant and lively tonal, like the bathroom and so on special narrow space also may use the mirror as the Metope, uses the mirror reflection to increase the area the spacious degree and the brightness degree.

Conclusion conjecture

In fact, both of the above statements are correct. But the sense of expansion and contraction in the "area" is not obvious enough, more reflected in the "volume" on. The color stripe width equal The national flag looks the proportion is different, with observes the distance, the flag flutters also has the relation, even with the color block position (blue near the flag pole) also has the relation. France used to use the aspect ratio of the national flag as a balance.

This is only my guess, but also ask Daniel to give a lot of advice.

Article author:Tim
Original site: hee to shout to –if you look something, SAY something.
Original title: Visual Illusion Classic: French flag vs Haismi Leg
Release date: January 03, 2010
Original link:http://xirang.us/2010/01/the-secret-of-france-flag