I scored a perfect 0 and while I can tell the difference, it's still pretty close. Purple/violet colors are just hard to discern in general.

I did it, decided to compare results, and saw

> Best Score for your Gender -69420

> Worst Score for your Gender 1000000000

Someone doesn't sanitize their inputs?

This test has as much to do with the monitor's gamma correction and color fidelity as anything else, IMO. Whenever I was unsure of the order, dragging the window over to a different monitor helped immensely. I was able to get a 0 by doing that, which I don't think I could have done on either monitor by itself.

I scored a 0 in this test (really cool btw!) but I also have trouble distinguishing the first and last color in the palette.

I mean, I can see _some_ difference but they are very very close, and I am not sure I could distinguish them in, say, a line plot.

Not really, they are just similar if you put it next to eachother (both are essentially shades of purple/violet) and as they are at different ends of scale it could get confusing if used as heatmap

My colour vision is absolutely perfect, and I wouldn't want to have to distinguish between the first and last in isolation in difficult circumstances.

> Attention! Please rotate your phone or view this test on a larger device for best results.

It doesn’t even let me dismiss that message. Who does this? Intentionally breaking your whole site because it might not look good. (This is an iPhone 14 max, so already a pretty big screen, and I’m in portrait orientation.)

I had a hard time distinguishing them with night shift enabled on my display. With a daylight white point it was easier but they are still close.

The point is that the two ends of the spectrum look more similar than their own adjacent colors..

Yeah, I scored a 6 where 0 is perfect.

that was a cool test, thanks for sharing it!