[Tommstein]

Whatchu talkin' 'bout Willis? Neither the B-2, nor the F-22, nor the F-35 are black, they're all this bluish gray you mention, same as most non-stealth aircraft. The only stealth aircraft I can think of that was black was the F-117.

[George83728]

You're right that the F-22 and F-35 aren't black, but neither are they the blueish gray I'm talking about which is much darker: https://dragonladyhistory.com/2019/04/30/u-2-black-paint/ The B-2 also isn't very blueish, it's more on the dark gray end of the scale but I can see how that's subjective.

And you're forgetting the U-2 and SR-71, which lacked full blown RCS reduction geometry but were still fitted with the black RAM coating (the SR-71 also had some stealth geometry; that was the purpose of the chines.)