Here's the information from the label:
Delstar (DAR) 10419 Prime
OEM Code: WE5661
GM (N America) Mariner Blue
Now, this is from a small can I bought from the body shop three years after I had the truck painted. I'm using it for touch-up, and it doesn't match the original paint exactly. It's somewhat lighter. This is an acrylic enamel. The truck was painted with the base coat/ clear coat method. I don't have the codes from the original paint job.