I believe the color is 1968 Chevy Truck Orange
info from paint.com site.......
"This orange automotive paint color is most commonly known as Omaha Orange. Other common color promotional names include Tangier Orange, Orange, and Fork Lift Orange. The color formulation has been used between 1930 and 1992, primarily by Chevrolet; but also by GM, GMC, Studebaker, Ford, Reo, Diamond T, Chrysler, Dr Pepper, Toyota, and HomeDepot. We have records of this color appearing on the following models: Chevy Truck, GMC, Studebaker Truck, Ford Special Order / Fleet, Chevrolet, Astro, Reo Truck, Blazer, Suburban, Chrysler Special Order / Fleet, Chevrolet Special Order / Fleet, and Diamond T Truck. See the full detailed list below."
paint chart and code info here.....
http://paintref.com/cgi-bin/paintdet...int=1968|Chevy Truck|Orange