ColourLovers posted a list of all 120 Crayola crayon colors and their (approximate) hex and RGB codes. The list was complied by Aaron at ColorSchemer.com.
I am now going to waste several hours creating a custom Photoshop palette of these colors.
Sigh.
BTW When did the Crayola site change so much? I remember it as being a much sweeter and less loudly marketing driven place. They do still provide nice images of their products.