Anyone know what color this interior is called?

[HBlue]

Check the Service Parts Identification sheet attached to the glove box.
It may be listed there.

On my 76 C10, the last item on the left column is the exterior color; and the last item on the right column is the interior trim color.


You can also go to gmheritagecenter.com
click on View the Archive
click on Vehicle Information Kits
click on Chevrolet Trucks
click on your year model
This will give you the booklet used by the dealer to order a vehicle from the factory.
They are quite lengthy, but are a wealth of information.