colour 'include' file wtd

Is there an 'include' file which somebody may have written for selecting colours

ie instead of having to use

color(255,0,255)
text"magenta"

I could use

color(magenta)
text"magenta"

or color(darkblue)
text"darkblue"

if you get my meaning. I have an include file for keyboard input from Krylar but cant find a similar one for colour

Thanks
Graham