Daniel, Your choices are very limited with respect to the color selections. I wrote this simple program to display what colors can be used. It will show the different 'escape sequences' that can be used. http://64.124.13.3/projects/pfss/download/xtcolor After you have made you choose, change the 'DIR' item in /etc/DIR_COLORS. Or add the export of LS_COLORS to your ~/.bash_profile.
I am fiddling with /etc/X11/app-defaults/XTerm-color, thinking that this is where /etc/DIR_COLORS, 34/44=blue are being defined assuming an xterm window? My problem is that blue (0,0,255) is a bright dazzling blue color and I need to tone it down a bit to something like "Navy" in X terminology. How can this be done or is it hardwired Thanks!