Comment by indrora
21 hours ago
I've always taken it to be that the color is unique to the situation/viewer -- a sort of pearlescent void-color that can't be described in any known language, but which just Is. More a physical phenomenon than an actual color, but distinctly hued somehow.
I always thought it was something like https://www.moodlight.org/ (set to 60 colors/second) or https://flashing-colors.com/ (set to 100 colors/second).
Note that those are possibly photosensitive epilepsy risks if you turn them up to 60/100.