Red + blue(indigo) = a color not on the chart? but in between the two colors is clearly green!
We perceive purple as an activation of Red and Blue cones in our eyes… The color itself actually doesn’t exist as a discrete wavelength and is a collective hallucination of sorts.
Just because violet light triggers both red and blue receptors in our eyes, that doesn’t mean there is only discrete red and blue light hitting them. It’s just that light with 380nm to 450nm wavelength triggers both typed of receptors. So there is violet light.
Just look at the spectrum chart here. https://www.thoughtco.com/the-visible-light-spectrum-2699036
Red + green = yellow…
Green + blue = cyan…
Red + Yellow = Orange…
Red + blue(indigo) = a color not on the chart? but in between the two colors is clearly green!
We perceive purple as an activation of Red and Blue cones in our eyes… The color itself actually doesn’t exist as a discrete wavelength and is a collective hallucination of sorts.
Edit: Also… Brown isn’t a color. https://www.youtube.com/watch?v=wh4aWZRtTwU (whoops, wrong link originally, fixed now.)
Just because violet light triggers both red and blue receptors in our eyes, that doesn’t mean there is only discrete red and blue light hitting them. It’s just that light with 380nm to 450nm wavelength triggers both typed of receptors. So there is violet light.