So where in the gamut

[epeeist (Colin Walls)]

Does this colour come?

[kofa (István Kovács)]

I think it’s related to this:

Impossible color

[hatsnp (Nuno Paulino)]

This experiment reminded me of Newton sticking a needle on the side of his eyeball to compress it and observe the changes that happened, same kind of “crazy” self experimentation.

[TonyBarrett]

Newton, meet Darwin

[Tamas_Papp (Tamas K. Papp)]

@kofa

I think it’s related to this

Yes, you were absolutely correct, it is an impossible color. It looks like they activate the M cones with the laser without stimulating the L and S cones.

I suppose a close approximation of what the test subjects see could be achieved by fatiguing the L and S cones and then looking at monochromatic light near 500–525nm (doing that safely is a challenge though, so please don’t try this at home )

[cedric]

According to my screen color-picker and the CIE xyY 2D gamut:

x, y, Y = 0.270050, 0.430821, 0.754232.

Thanks to Bruce Lindbloom’s CIE Color Calculator:

http://www.brucelindbloom.com/ColorCalculator.html

… and Chromix ColorThink: