As a result, purple and magenta are known as "nonspectral" colors, because they don't really exist as actual electromagnetic ...

Black on the color spectrum. While there’s no black in a rainbow, photons anywhere in the electromagnetic spectrum can be seen as black. Or in some cases, they can’t be seen at all!

There's a color that isn't "real," according to science. Use of and/or registration on any portion of this site constitutes acceptance of our User Agreement, (updated 8/1/2024) and acknowledgement ...