Can you verify my Gray color Guide?

Victorymike18 · 2017-01-15T00:15:41.000Z

Hello, I recently bought a used lot with a bunch of vintage 1x1 plates. I took the opportunity to make a little color chart, but also want to make sure I did it right before I list these on Bricklink. I'd appreciate any help with verifying these are correct. I can take a better picture with macro if this isn't quality enough: (The Tan is my reference point for the list) And here's an example of the pieces I need to get listed: