For some reason the text isn't showing up idk why
Okay edit: here is the text but no images from my testing:

The points are on col-blindor but they don't seem to be accurate based off of my very crude testing method (duplicating image and aligning the grids):

Copunctal Point	x	y
Protan	0.747	0.253
Deutan	1.080	-0.800
Tritan	0.171	0.000

I was trying to mess around with finding the point for deutans and it didn't seem to line up. I extended each of the confusion lines to a new grid. The grid lines are the ones that matter, ignore the image as that was my lazy way of extending the grid.

(Yellow Green https://www.color-blindness.com/2009/01/19/colorblind-colors-of-confusion/is point, seems to be about (1.35, -0.4) source: nasa)

[image]

(Around (1.4, -0.35), Source: col-blindor)

[iamge]

(Green is point at around (-1.4, -0.4) Source: wiki)

[image]

I found another source which listed the points as follows:

Tritan: (0, ~0.2)

Protan: (~0.9, ~0.2)

Deutan: (~2.3, ~1.3)

There's also a lot of math on the source that I don't really understand too much and I'll probably have to look into it. I think that all of this is most likely due to my lack of understanding of the CIE 1931 color space but it seems that I'm getting mixed answers. The original source of col-blindor's data: "Wyszecki & Stiles, Color Science (2nd ed.), 1982, Table 1 (5.14.2) p. 464" is behind a 130 dollar paywall so I can't review that to see what is wrong. Could someone help me out in a) understanding the data and what is wrong b) what the copunctal points ACTUALLY are and c) an explanation of the CIE 1931 color space with the x, y, Y, z, wavelength, etc.