11 questions linked to/from What are colors?
1 vote
4k views

### Is white a single color? [duplicate]

We have seen the Newton disc, when it is rotated it produces white color. So I want to know whether white exists as a single color or is that a combination of multiple colors?
770 views

### What exactly is color? [duplicate]

What is color? “The property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light”…. You might say. So take a white object ...
• 23
477 views

### How do RGB colors work? [duplicate]

They say that all colors can be formed by mixing Red, Green, and Blue appropriately. Is it true? Isn't the Fourier basis infinite dimensional? Or does it turn out to be the case that only three ...
• 654
72 views

### Why do colors mix? [duplicate]

We know that we can mix different colors, but why is this true? What property is giving rise to it? I was thinking it to be superposition of light but I realized that it can't be true as that ...
• 217
1 vote
42 views

### How do we define a color? [duplicate]

Is Black a color or just the absence of others colors/light . What actually constituents colors? How do we define if something is a color or not?
26k views

### How many colors exist?

How many "colors" do exist? Our perception: As far as I know, colors are just different frequencies of light. According to wikipedia, we can see wavelengths from about 380 nm und 740 nm. This means ...
• 955
3k views

### Why are color values stored as Red, Green, Blue?

I learned in elementary school that you could get green by mixing blue with yellow. ...
• 153
2k views

### What is the sun's spectral series?

My physics book says that six colors can be distinctly seen in white light: red, orange, yellow, green, blue, and violet. Does solar light only use these six wavelengths and mix them additively, or ...
• 312
1k views

### What was the motivation behind suggesting the trichromatic theory of vision?

Background In this thread, I asked whether it is true that the colors red, green and blue, through additive mixture, can make up any color. Turns out they can't. However, when reading about the ...
• 319
1k views

### Why does light have only 3 primary colours and why don't then non primary VIBGYOR colours disperse? [duplicate]

While light has so many wavelengths why only 3 colours exist as primary colours? Why do some colours disperse while VIBGYOR colours don't (except the primary ones which satisfy the logic as they are ...
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