This might help (?) Have to admit, didn't read all the details in the threads above, so maybe already past this point...
When I got my '56 I found a website that decoded the VIN and provided color codes. Credit given at the top of the page (of this link):
http://daveladue.com/56chevy4x4-vin.htmlScroll down to "
1956 Factory Color Codes",
234G is Empire Blue.
(PS. I tried the link on my page where I give credit for the info - americanclassic.com - and the 'VIN decoder' "flashes" in my browser, then gets overlaid with a window that starts "Good News..." Not sure whats up with that, maybe somebody else has better luck.)