Hi, The short answer as I understand it is no. As Randy says in his earlier post, even having the formula does not ensure the results are correct.
Earlier in this thread is a picture of my Mediterranean blue car, original paint as faded after 43 years at the time. I am getting a little closer to doing a full repaint. I just recently got a sample of what is represented to be a paint "chip" sample from Jan Servaites. He is widely referenced as a source for real paint samples of the original Rootes colors. He puts down a layer of the paint on a CD disk. I am not aware of what is his reference source.
I personally like the color of his sample. Compared to my existing faded original paint, it is several shades darker, as might be expected. However it is still a light blue. It also is a little grayer, richer looking for lack of a better term. I have read that the gray, somewhat muted tones were characteristic of the colors used by Rootes back in the day. Compared to other shades of lighter blue, it does have a green undertone as well. In my opinion, again I like what Jan has provided.
The next step is to take it to a paint shop, have them "read" the sample with their spectrograph and come up with their own formula. Obviously you want to test the result against the sample. As Randy says, the cook still has to get the recipe right. Jan says he paints his cars using BASF Glasurit single stage 22. I think matching to a color is better than relying on a formula. Even today, cars come off the line with variations of color over a production run.
About three years ago, a kid at my local auto paint store found a formula for a "Rootes Med. Blue" in an old book. No idea if that is medium blue or mediterranean blue. The color is very close, but according to my body shop guy does not have enough green in it. To my aging eyes, it looks a little too pure blue, almost like a cake icing color. Again maybe it is an issue of execution. The mixture was done in PPG Deltron 2000. The book code is DBC 13097. I have the pigment formula for a quart if you are interested.
Cheers, Gene