In my heart of hearts, I’m lazy. I usually start decorating with two colors (or non-colors, whatever) and then branch out color-wise as I see things I like. My living room, for example, started with a palette of blues and browns, but I’ve since added orange, which meshes with everything else a lot better than you might at first imagine.
Black and white are easy starting points because ‘black and white’ is a proven combo. Once you’ve got your timeless and classy black and white interior established, you can start adding other hues, like vivid red, bright yellow, baby blue, or even apple green. Voila! Instant eye draws!