True! Cavite Blue was actually closer to a medium dark gray. Humbrol 27 is a close color to this...
Once upon a time a source came to us that said something about Aussies seeing HOUSTON at Darwin (v. early in the war, obviously) and they made reference to the "big blue cruiser" there...I always wondered about that. AFAIK CA-30 never looked particularly blue...regardless of the so-called "Cavite blue".
There may be nothing to it, but this mention of CHICAGO "blue" brought that all back to me.