That's fair. I didn't intend to offend anyone, and my reply was a response to the "piling on" after the point was made. Your explanation of color was helpful. As someone who enjoys the color variety of stamps, I like to participate in these threads. I do feel like straigthforward questions on "what color is this stamp?" always have the discussion leading to lectures (and I don't use that word pejoratively) about how hard it is to evaluate colors and scans and lighting and language and even how individuals perceive color are all factors that make it hard to do. That's all fine, but despite all that, how do we help each other with the actual question at hand? I don't think giving up on color because it is hard is the right approach.
Piling on and suggesting that the OP should change the original post to use the word "hue" instead of "shade" is not helpful. We all know that philatelists use the word, "shade" to mean color varieties even if one definition of "shade" is a color with black added to it. "Shade," meaning small color variations is a dictionary definition: https://www.merriam-webster.com/dictionary/shade
And I guess I'm as pedantic as anyone else since I'm on one side of a disagreement about the definition of a word.