A study is the one room where dark walls earn their keep. Dusk Charcoal wraps the space and pulls your focus inward, which is exactly what you want when you sit down to read or work. It is the lead here, and everything else exists to keep it from feeling heavy.
I balance it with Soft Greige on the trim and ceiling so the light has a place to settle, and Warm Walnut underfoot to add the warmth charcoal lacks on its own. Cabinet Slate sits a step lighter than the walls, so built-ins read as a deliberate layer instead of a black hole.
The spark is Ink Blue, used in the smallest dose — a chair, a frame, the back of a shelf. It reads almost like a deeper charcoal until the light hits it, and then it quietly does the work. This is a calm, slightly contemporary scheme that feels current without chasing a trend.