defining colors with RGB values for mutt

[Jochen Schnapka]

Hi.

Is there a way to use arbitrary RGB colors or pre-defined values like
"GreenYellow", "DeepPink" with mutt? 

I could imagine that I have to make these colors first available to xterm
or Eterm, right?

The docu says, I could use keywords like color1, color2, ..., colorN. How
can I find out how these values look like?

Any hints?

Thanks, ~~:-Jochen Schnapka