63B Deep Shade Of Blue Vs Deep Blue Shade

Pictured are two PF certificates submitted as 63b dark blue. One of them says "It is genuine, deep blue shade" the other says "It is not Scott 63b, rather it is a Scott 63, in a deep shade of blue."

My question is, what is the technical distinction between "deep shade of blue" versus "deep blue shade", or is the 63b certificate in error and it should have said "dark blue shade" ? Or is it actually a "dark blue shade of deep blue"? I am confused.




p.s. I don't have a dog in this race, I just saw these two while looking up a different stamp.

The descriptions "deep blue" and "in a deep shade of blue" are essentially interchangeable. They were both used to emphasize the difference between a Scott 63b, "dark blue," which has an element of "blackness," and a "deep blue" shade of Scott 63, that does not.
Lewis Kaufman

Then, if "deep blue shade" and "deep shade of blue" are the same color, why did one get certified as a 63b and the other one as a normal 63?

Or you saying that both of these are normal 63 and the ambiguity is with how I am reading the certificates in "submitted as" versus "we are of the opinion that ..." ?

Not that this will help any, but based on my reference book "Encyclopedia of the Colors of United States Postage Stamps: R.H. White, copyright 1981", there is a page just for the Scott 63. Now there is always discussion about how well a 1981 book survives, and how you can tell different colors on different monitors, but I would like to provide this scan. Each picture is from one page scanned using 1200 dpi settings. I then clipped out the extra data, and combined just these three in one tight group:

At least on my computer screen, I see almost no difference between Blue and Deep Blue. However, 63b Dark Blue appears much darker (which could be due to the darker cancellation ...)

As some astute observers may comment, the background gray color in the 63b Dark Blue is a slightly different shade than the others, even though it is scanned off of the same page at the same time. In any case, let the stone throwing begin ...

Both were submitted as 63b. The database explicitly says the lower one is not 63b. For the top one is does not say whether it is or is not 63b, only that is a deep shade of blue (which I would take to mean it is not a 63b)

This is one of my favorite issues because of the range in color. Here is my album page that shows some of the different colors. I hope the range comes through on this low-resolution scan.

Very nice! Thanks for posting, and I hope you fill that empty space sometime.

philazilla - impressive. I like it for the same reason.

Wow philazilla!! I absolutely love your album page with the different colors of the 1861 1 cent Benjamin Franklin stamp - it most definitely is a very beautiful stamp. Your stamp display is so impressive. Thanks for posting this. Regards

Bradley

Edits were to fix typing errors.

I agree, Philazilla, that is a beautiful page. And that dark blue is very distinctive.