Interesting description of "celeste"...
I was reading the March issue of the UK magazine
Classic and Sports Car, and featured was a six-page article on a 1907 Bianchi car (hey, it's chain driven!) that is still used in completion over a century later. Sadly, it's red.
Anyway, the article starts out "
To most, the name Bianchi evokes images of pistachio-painted bicycles..."
Not sure if I'd call that technically accurate, but an interesting attempt to describe the color.
For those that do not subscribe, here's what it looks like (and the radiator badge does look like it belongs on a Bianchi bike):