How do we know that we all see the same colors? Like does pink look the same to every one or green etc?

Answer 1

Possibly not. In fact probably not. Consider that some people can see something which is blue-green, and consider it more green, others more blue etc. It is consistency that is important, we all see the colours the same each time. The same could be said of sounds, how do you know that low sounds and high sounds are not reversed for different people, even though they call them low and high consistently?

Answer 2

That's one of the great mysteries of the world that'll probably never be answered. WIth colorblindness, we know for sure that people are experiencing color differently. WIth people who aren't colorblind, though...? No way to know....

Answer 3

ive always wondered this, so i asked it on here ages ago.. heres what got best answer
The short answer to your question is that we don't see precisely the same color. But we see within the band of a particular color range. Our eyes have different sensitivities which may affect the way we perceive a particular color. However, there are ways to measure specific colors so we can have a reference on them.

We can correlate color to its wavelength.

The seven colors comprise the spectrum: red, orange, yellow, green, blue, indigo, and violet.

The wavelengths of white light may be divided into:

Red 700.0 nm to 640.0 nm
Orange 640.0 nm to 595.0 nm
Yellow 595.0 nm to 575.0 nm
Green 575.0 nm to 500.0 nm
Blue 500.0 nm to 440.0 nm
Indigo, Violet 440.0 nm to 400.0 nm

(Note: nm is nanometer, that's a billionth of a meter)

Perception of Color

We each see light in our own way. If a number of sounds are mixed, one can usually distinguish the various frequencies coming from different sources (i.e. different instruments in an orchestra). However, mixed frequencies of color produce one perceived final color. The same final color can be achieved by several different combinations of color. The wavelength of violet light, for example, is about half that of red light.

Same Color By Different Paths

For example, we can have three ways of achieving the same color - pink. First method, light that is orange is mixed with white light to make pink. Second method, red light is mixed with a blue-green light to make pink. Third method, violet, green, and red are mixed to make pink.

Human Eyes

Human eyes contain rods, which “see” black and white, and three sets of cones (red, green, and blue) that produce all the colors by mixing their signals. The eyes of animals contain more rods than do human eyes to detect movement (hunter versus prey). When you mix frequencies of light, the human eye perceives only one color. In color-blindness, the eye loses its ability to distinguish red, because red light has the weakest and lowest energy. Blue light has the strongest energy.

The Human Eye is Most Sensitive in the Center of the Solar Spectrum.

Since the color of light perceived may reflect a mixture of different light frequencies, we need a way of measuring color that is independent of frequency. The Chromaticity Diagram was established in 1931 as an international standard for color measurement. Just so you know, a science of color measurement exists. A chromaticity diagram chart can be set up to define any color on the basis of CIE coordinates, which are often used in technical literature and in correspondence between scientists.

Answer 4

it is impossible to tell, you will never experience vision in another persons body. if you are born colorblind, then you will live your whole life believing the name of a color even if it looks different in your head.