Original engine colors??????

I know this subject has been debated on other sites many times in the past. I have posted a few pictures of the 340 in my 69 GTS before, but lets do it again for this post.
This is a original paint motor on a 10.5K mile car. SBD 127
Some see blue, but I see turquoise. At least I think I do?

340 engine 2.jpg