From Peeron we can find out how many times a colour appears in their part inventory, and in what form the colour appears. Basically, if you were to buy one of every set in the Peeron inventory database, the part total is how many total pieces you would have in that colour. The most common colours are:
Finally, Do you like the current LEGO Palette or is there a colour you would like to bring back from the past? Are you upset that LEGO still has not made that one part in the colour you need? Let us know in the comments, or hit Jeff up on Twitter @StillSorting.