Color scheme outputs unexpected colors

I know. But we started investigating this and it turned out the text was in a color that wasn’t even in the color scheme, and that made me wonder how these colors are determined.

It did. Yes, that was new for me too. Usually one can hit F5 once you’re in /admin and then you get rid of all the weirdness, but this time we got a very light blue and we couldn’t get rid of it until we removed the color scheme.