Tan seats on Moon Mist will look like garbage, just being honest.
I was a little hesitant of Moon Mist at first, but I love it now! It's such a period correct color! and it's not an "in your face bright blue", it's toned down a bit.
Black seats with moon-mist accents may not look too bad. However, Moon Mist is very hard to match to.
I'm embracing the nostalgia of moon mist blue here! haha