Could This Possibly Be A Washington 74tc6

Thank You Don
That is a lot to digest.
The things I agree with are the large reverence library to compare stamps.I wouldn't use the computer
to scan the stamp to many variations in color .There are hand color meters designed in industry to reproduce colors that use the color percentage of red green and blue's.Using the same company meter might make them precise I would think.I don't know of anyone that has used one so I cant tell you for a fact.I think I'am a good judgement of color for I am a artist and its still hard seeing stamps colors..
As for the atomic stuff that would and could make stamp collecting more precise in the future.

Wow Don. Great explanation regarding colors.

What we need is to fund the current day Ashbrook/Amonette/McClung so they can attend various shows about the country and ID colors while training a intern to do the same. They could advise the certification companies too. You can't replace the human eye, at least now, and that would provide consistency.

Thank you Caper123 That is what I was thinking get Michael McClung and associates their knowledge could help in Identifying these special stamps in the case of fading color changing through aging and help to maybe get a good sense of rarity etc, he would be on the same page.
I really think if this is really important in order to establish trust and keep this great hobby going strong ,it can be done.
We need to have a strong base to start from.

I think that this discussion, like many similar ones, reduces to the concept of Major versus Minor varieties. How deep do you really want to go?

For Major, catalog-listed, important varieties, you have expert committees, such as the Philatelic Foundation, which by their nature, need to be able to identify at least the major varieties, for collectors. Think "Pink", "Pigeon Blood Pink", and so on...

For most of the rest, there tend to be both formal and informal collector study groups for many different stamp issues and areas thereof, which exist to afford collectors the opportunity to gain some degree of specialization by interacting with true specialists. It can also be a good way to make friends.

As discussed, color tends to be one of those things that is hard to learn just on your own from reading books - you need reference material to get a proper start. Invariably, the best way is to acquire your own reference material, and in parallel, network with people to learn more about your stamps. Have fun.

Thank you txstamp;
You have presented the goals if not problems presented in stamp collecting .
For the new people like myself knowing what you are looking at is almost impossible
to make a judgement of if you don't know the facts.
And the facts like you said may take interacting with knowledgeable people with on site stamps and not just books.
I think someone wrote in one of these blogs that once you see a pigeon blood pink you wont forget what it looks like.
Knowledge should be fun the more the better.
Cheers Dan