Purple is &#x27;not a color&#x27;: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Purple#The_optics_of_purple" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Purple#The_optics_of_purple</a> ;)