I would bet that used to be olive green. It was notorious for fading to silver. I owned this truck for a short time, believe it or not that’s original olive paint...
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I live in California, but identify as a Texan 
"If a job's worth doing, it's worth doing well"
Project "
Little Sister" (70 c10 blue original paint refresh)
Project "
C10 Fever" (68 factory black 396 swb)
Project "
Blue Bomb" (70 c30 blue original paint refresh)
Project "
Vitamin C" (71 c10 orange original paint refresh)