From a script, you'd use the /color command ("/color <index> <RGB value>" - check mirc.hlp).
In case you don't know how to get an RGB value, you could use $rgb() for that, using the Red, Green and Blue values from the colour selection dialog (the one that appears when you right-click a colour box and define a custom colour).
Blue, for example, is R=0, G=0, B=255, which is $rgb(0,0,255), which returns 16711680. Supposing you wanted the colour number 0 to be blue, you'd either use "/color 0 $rgb(0,0,255)" or "/color 0 16711680".
Last edited by cold; 02/11/03 10:14 PM.