It is believed that there are two main reasons why it is red: the first with the history of opera a relevant customary preference, which is the latter scientific it has a reason.

Let’s start with the first. Really theatres Opera houses are believed to have played a role in the choice of this colour.

center of opera art Italy, Venicein the first opera house built red and gold colors are used.

These colors are especially red velvetrepresented the royal family. As this art began to spread to the rest of Europe, Europeans began to build these buildings. by imitating they preferred to use the same color palettes. Representing the royal family rather than just the red of the French blue It is known that he prefers color.

through the ages decreased interest in opera Entertainment industry shining stars theaters and then cinemas. They continued this tradition and addressed their audience by using the color red in their halls.

There is a scientific reason behind the fact that the color red is still used.

Visible light sensitive cells in the retina of the human eye; rods and cones There are two types of photoreceptor cells. Cone cells perceive colors in normal light. in low light color vision work to rod cells fall.

Experiments by scientists; your sticks up to 498nm It has been shown to be sensitive to the wavelengths of light around it and insensitive to the wavelengths above it.

As you can see in the image below, rod cells see green best, but cannot detect red light. Cones perceive all colors.

wavelength high red, in dark lighting conditions through It’s the first color we lose sight of.

That is, in an environment with red curtains and armchairs such as theater and cinema; When the lights are dimmed, red colors are easier to use than blue or green colors. becomes invisible. And that makes it easier for us to focus and adjust to what we see. good viewing experience offers.

If so, some people will ask why black color is not used.

not used, less preferred let’s say. You go to a place to have fun, to feel good, to distract yourself, to socialize. In this place you depressed mood, depressed Do you want black colors that will sting? Or happiness, enthusiasm, vitality the red color that feels good? Those who run these halls also prefer to use the color red because they know these psychological effects of colors.

For the scientific reason we mentioned above, the color red is one benefit there is more. Red colour; vision cells in the transition process from dark to light or from light to dark. accelerating adjustment.

That’s why pilots and radiologists wear red glasses.

When we sit in the dark for a long time and turn on the light, our eyes become blinded and we have difficulty seeing. The same is true when we turn off the light. both events before We see this habituation process with the red color accelerated we become

• Sources: Junkie, Wikipedia 1 2, Opereyşın, Quora