My 66 originally had only the dash in dark fawn. Everything else in the interior was the lighter fawn, though it was definitely a slightly darker fawn than a few 64/65 trucks I compared to.
I'm no authority and don't have pictures but someone who knows more will probably chime in with some accurate pictures. Also I probably disqualified myself from future factory color discussions since I went and repainted my truck and interior a completely different color
