In that photobucket picture is does look blue, but it is green. Brewster or Juniper green. My first old Chevy was a 55-1st series and it was blue. This is not a very good picture but it's the only one I can find.
https://www.stovebolt.com/gallery/brown_franklin_1955.html

Good luck getting your truck back on the road.

Professional Novice