Check on the sticker of your driver door. One of the headings should say
INT TR and have a 2 letter code associated with it match it to the below chart.
Year Interior Trim Code Trim Color A-Pillar Paint F-Series Excursion
2nd Digit (INT TR) Scheme Color Name (Superduty)
2005 B Black/Ebony Black unknown
2005 D Dark Flint Medium Flint X
2005 E Flint Medium Flint X X
2005 H Pebble Medium Pebble X X
2005 P Med. Parchment Medium Parchment X
2005 W Tan Medium Pebble X