Yes, I'd bet that is Nutmeg, which was used in 1981 and 82 only. But, it might be Caramel, which was used only in 1980. I don't know how close those two colors are to each other, and the lighting conditions when the pics were taken can certainly shift colors a bunch.
The only other color it might have been is Chestnut, but that was an '86 color and since the other things you listed are probably from the same truck it had to have been a 1980 - 84 truck. So it isn't Chestnut.
Gary, AKA "Gary fellow":
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI