Humans assign certain names to certain wavelength of the em spectrum
In this case red is often defined as wavelenths between 625 to 700nm, greens are 500 to 565nm, while yellow is defined as 565 to 590nm.
If a human saw em light at 580nm, wed call that yellow
But for an rgb screen, it never produces light at 580nm, only red green and blue lights, but, as a quark of our biology, if humans see red and green light at certain amplitude ratios, most humans will interpret that light in the same way as it does light at 580nm
This to say, yellow light does exist, but screens do not make it, but it does make light that the human can interpret as the color of yellow regardless
(Didnt see the other comment before writting this one, sorry for the duplicate)
Humans assign certain names to certain wavelength of the em spectrum
In this case red is often defined as wavelenths between 625 to 700nm, greens are 500 to 565nm, while yellow is defined as 565 to 590nm.
If a human saw em light at 580nm, wed call that yellow
But for an rgb screen, it never produces light at 580nm, only red green and blue lights, but, as a quark of our biology, if humans see red and green light at certain amplitude ratios, most humans will interpret that light in the same way as it does light at 580nm
This to say, yellow light does exist, but screens do not make it, but it does make light that the human can interpret as the color of yellow regardless
(Didnt see the other comment before writting this one, sorry for the duplicate)