On: Fuchsia, a new operating system

[snarfy]

A rainbow starts at red and ends a violet. In your brain, the rainbow wraps around in a circle, connecting red and violet. This is not the reality of the wavelengths, so your brain makes up a color that fits between red and violet.

[Ericson2314 → snarfy]

It's also almost an octave of color---I cut my brain some slack

[cududa → snarfy]

Do you mean a cylinder?