I rode on a couple of 747s, A310-200s and A300s during the period 1985 to 1991. It was right around 1985, I believe, that Pan Am revamped its cabins, getting rid of the brighter colors (red, medium blue and gold) that had been used since the late 70s and going to a more conservative appearance in all classes.
The 747s and transatlantic A310s featured three-class service: 'First', 'Clipper' class (business), and 'Cabin' class (economy). In these aircraft, First was in a dark blue leather with special lamb's fleece inserts in the seatbacks. The front bulkhead of the 747s had a tapestry of a stylized clipper ship. The A310s had more standard non-descript bulkheads, some sort of gray laminate as I recall. Clipper class was 6-abreast on both aircraft and featured cloth seats in a tweed (brown/beige) subtle herringbone pattern. I recall it being very soothing to the eye. Also, those headrest towels draped on the seat tops were a dark brown leather. Classy. Economy class went to a navy blue cloth with little stylized beige geometric disks about an inch in diameter, spaced evenly across the blue. The overall appearance was definitely dark blue, with the beige designs apparent at closer range.
BTW, the transatlantic A310 fleet included some -200s as well as -300s. They had less range of course, and according to DL staff, would often stop to refuel if bad headwinds were encountered westbound. All told, Pan Am had 7 series -200s and I'm not sure if all of them eventually made it into transatlantic service. I know that early on, they were used on the German internal segments and would appear on NYC- Florida in the winter. These ships, fleet numbers 801-804, had a more traditional two-class arrangement in a cabin design unique to the Airbus (including the A300): rust and blue cloth diamond pattern in First, and coach in pink and light blue cloth. The bulkheads in both F and coach were dramatic prints of galaxies, basically dark blue, almost black, with big patches of star clusters. Cosmic, unique and dramatic.