The first step to do is, find a style that would become the dominant style, minimalist example. Next, select neutral colors to make it "safe." Gradations of brown, black, white, or beige, is a telling choice. For furniture, because modern has been selected to be the dominant style, choose a simple design and not a lot of ornaments. Then where will put a touch of minimalism.
Luxury in minimalist design could be produced from the living room chandelier, classic design nightstand lamps, mirrors, paintings and other trinkets. One thing to remember, remained faithful to the original color choices. So whatever style of furniture or accessories, color choices should remain in one thread. Except if you're interested in creating an accent. That, too, to note where placed.