[ExI] Red

[John Clark]

On Mon, Jun 29, 2026 at 5:39 PM Ben Zaiboc via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

*> We have a colour called Magenta, but it doesn't correspond to any
> wavelength of light, or any band of wavelengths. *


*According to Google**:* "*Magenta is a unique, extraspectral color that
does not exist as a single wavelength of light in the visible spectrum.
Instead, it is created by the human brain filling in the gap to bridge the
opposite ends of the color spectrum—mixing short-wave blue light and
long-wave red light**"*

*And if you decrease the amount of red light a little and increase the
amount of blue then your brain interprets that as purple instead of
magenta.*

*John K Clark*


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