Thanks as always Elaine, I don't know how I missed that! :-)
But that seems different from the color code that is printed out to the log, which is in a format that includes the transparency in the code - see attached screenshot.
So I guess a more precise query - when I adjust the color of a volume, the color command, with the code, is printed to the log, whereas when I adjust the color of a model or selection it is not. This code is handy, because it includes both the color and transparency (last two digits), so it's useful to plug into a script or alias.
So if it's an easy thing to do (probably not in which case please ignore!) it would be useful if color commands were printed out to the log when adjusting the color of models or selections, as well as when adjusting the color of volumes.
Cheers
Oli