Original Factory Colors
Classic GMC Sierra Paint Colors & Factory Codes (1977–1985)
Every original factory paint color offered on the classic GMC Sierra (1977–1985), with official manufacturer paint codes, hex approximations, and rarity notes. Use the paint code to order a color-matched sample from a restoration supplier.
Medium Graystone
17
#8a8c8e
1977
Metallic graystone, code 17.
Charcoal
18
#4a4c4e
1980
Code 18 metallic charcoal.
Medium Gray
15
#8c8e90
1985
Code 15 metallic.
About these colors:
Color names, factory paint codes, and production years are cross-referenced from established
marque references and owner registries. Hex codes are approximate digital representations of
factory paint — vintage automotive paint was never defined as a hex value, and original enamel
fades over time. True paint colors depend on age, sun exposure, refinishing history, and
production batch variation. For an accurate match, always mix by the factory paint code — not
by the on-screen swatch — and verify against an original paint chip or a professional
color-matched sample before purchasing paint for a restoration.