Looks more like British tan to me. I found these catalog colors online that show both tabac and British tan. Do not know what years these came from but thought they might help.
I posted photos of some of the hangtag color samples at the Coach FAQs and Reference thread here 9 years ago. You might want to Save the URLs. Posts 37, 38 and 39. The photos I posted include catalog dates. Whoever originally posted the photos you found didn't bother or didn't know.
Coach Frequently Asked Questions {FAQ} & REFERENCE INFO
How do you clean the satin lining in a Coach bag? I am afraid of waterspots. TIA I have never gotten waterspots. I have used a mild spray cleaner (one of those ones that come concentrated and you mix with water) and also oxyclean laundry stain remover, but I think you can use dish soap too...

The colors on the left in Post 24910 are from 1986. There are 2 fewer colors than my 1986 Classics pic but whoever posted that photo cut the two hangtags that should be on the right, Putty and Black, completely out of his picture. I'm assuming it's the same person who has a bad habit of posting photos that are often cut off at one or more edges.
The colors on the right photo are identical to the 1981-82 catalogs in the FAqs post #37.