70 Dart Swinger - Color Codes? Interior/Exterior

To be a bit more specific, FT6 is the exterior paint code & interior upper door frame paint code.

An image of a D2 interior (in blue) at The 1970 Hamtramck Registry - 1970 Dodge Color & Trim Book - Dart

T5 color swatches for your seats at http://www.hamtramck-historical.com/images/dealerships/colorAndTrim/1970/70_Dart0007.jpg

1970 model year paint chip charts for FT6 & your interior suede info for the dash frame at The 1970 Hamtramck Registry - 1970 Paint Chip Charts