Pink is everywhere. Nature, clothing, sweets, cartoon characters, toys, flags, breast cancer awareness campaigns, computer accessories, mobile phones... the list goes on. So where does the idea about its nonexistence come from? From a technical point of view, pink is not part of the spectrum, and more than one wavelength is needed to reproduce it; therefore, it is an "invention." However, not everyone agrees with that conclusion...
Pink Floyd, Pink, the Pink Panther, rosé wine, the Pink House in Buenos Aires, the Palermo and Inter Miami jerseys... we use pink a lot, and the word 'rosa' as a name, that's for sure. We've even had a "pink war," courtesy of artist Stuart Semple and his 'Pinkest Pink' against Anish Kapoor, the only person on the planet who cannot apply it to his works.
There's no pink light
The colors of the rainbow correspond to different wavelengths of visible light: red, orange, yellow, green, cyan, blue, and violet. Pink does not appear because there simply is no pink light. Pink, or magenta, fuchsia, and other similar variants, are a mixture of red and violet light both at the ends of the light spectrum. The video adds an exercise: take the spectrum and make a wheel with it. The gap between red and violet represents all the light we cannot see, and pink is a replacement to cover it. Another detail? Pink is what remains of white light when we remove green (any basic image editor will let us verify this). So, is pink a myth?
Granted, there's no pink wavelength, , but not a few have problems with the video's explanation. Why? Because it doesn't make much sense to connect in a circle something (the electromagnetic spectrum in this case) that starts at zero and extends to infinity. At the same time, if the plan is to establish the nonexistence of pink, this should be extended to all colors. Color is nothing more than a characteristic of visual perception, brain 'labels' derived from the stimulation of cones produced by electromagnetic radiation. That perception can be lost and it even varies from person to person. Don't you remember what happened with the damn dress and our optical illusions? We have balls that are the same color, strawberries that aren't red, and black-and-white photos 'with color'.
