Here are a few notable sites with FREE palette generators;
The first from DeGraeve.com ( A FANTASTIC SITE!)
http://www.degraeve.com/color-palette/index.php
The second is from CSS Drive:
You can then save the palettes as:
ASCII Art has a long history among geeks. One of the first things I printed on my Commodore 128 in the mid 80's was an ASCII rendition of Spock. I remember waiting for what seemed like hours as my 8-pin printer slowly inked it out. But it was worth the wait when I stepped back and the full effect hit me.
If you'd like to find out more, there are several sites and news groups dedicated to this "art form". Just search for "ASCII art".