The 8th Colour They Removed From Every Rainbow — It Was Never About Light (Video)

When Isaac Newton split white light through a prism, he initially saw only six distinct bands of color (red, orange, yellow, green, blue, and violet). Johann Wolfgang von Goethe completely disagreed with Newton's purely light-based mechanics, arguing that color is instead an emergent phenomenon that relies on the contrast between light and darkness. The "eighth color" often discussed in this context is indigo.