@trini My goodness, I feel old as I didn't even know what that is!
I just read https://en.wikipedia.org/wiki/Solarized & in fact my #000000 on #e5e5e5 Emacs colors look very close to solarized Base3. (My Emacs windows look a lot like: https://upload.wikimedia.org/wikipedia/commons/b/bd/Solarized_Light_Xcode_4_Theme_%285592863390%29.png (except I don't write Objective-C of course🤣).
So maybe I actually invented light solarized in 1993 when I picked black-on-linen the fist time!
I never used the #e5e5e5 for terminal windows b/c I wanted to distinguish them visually from #Emacs easily.