The black Raider I had was equipped with a tan interior. All the other Montero/Raiders I've had have had grey.

I found that there are two grey colors, charcoal and light grey. There are three brownish colors, tan, cream, and brown. I've only seen a few blue interiors, but with no variations.

1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya