Keeping in mind, that (at least in the past) if you
paid IBM enough, you
could get a mainframe done in just about any color scheme that you wanted.
I have to think that the wildest one that I personally experienced, was at
a Ralston Purina (feed) plant. And yes, as you might guess (or fear) the
entire system was painted in red and white checkerboard.
Most 370s I'd seen had been either the standard blue or the
(older?) burnt sienna, but at IU Kokomo (or was it Fort Wayne?)
they had a 370/25 that was canary yellow. Talk about putting
your eyes out!
-dq