I appreciate people trying to help, but it doesn’t seem like people know what I’m doing. I’m just trying to get volume to match the background, I’m trying to make the volume be a specific color and only that color. Why? So I can control how much any given object blends into the background as a practical design tool for 3D art, in a realistic way. This on its own has nothing to do with logo design, I merely referenced that as an example scenario of why specific colors are important to businesses, non-profits, universities/colleges and government agencies.
If you can think of a better way to make an object blend into a background, besides volume scatter/absorption being added, feel free to recommend it.