In fact, violet (along with the rest of the colors in a naturally ... made by your L cones (red light). To compensate, the brain bends the spectrum into a circle, making the two extremes meet ...

Scientists have discovered that purple, a color not found on the light spectrum, is a brain-created illusion when red and blue light combine.

To see the full circle, however ... Scientists call the bending of light “refracting.” The colors separate because each “color” of light travels with a different speed in water, or ...