My 82, had the paint code printed inside somewhere (forgot where off the top of my head) but it also is the Mahogany Metallic which according to the big book was not a standard color that year.
But does look like it was an available color for the Corvette in 81'
http://www.paintscratch.com/touch_up...281981%29.html
I plan on when i get the rust spots fixed having it sprayed all that color, then redoing the wide pin striping.