Hmmm.. anything that parse rgb colors creating a 'stantard' would be useful, and a option that transforms automatically rgb colors in irc 4-bit colors (transforming into the closest color) will make who don't liket this feature happy
and maybe a $rgb2mirc(text) and $mirc2rgb(text), both like the $ansi2mirc(text)
but i am not sure what standard would use..