A study should feel like a deep breath. This scheme starts there, with Quiet Sage washing the walls in a soft, grounded green that takes the edge off a long afternoon at the desk. It is gentle but never sleepy, the kind of color that holds steady while you think.
Soft Greige warms the cabinets and built-ins so the green has something to lean on, and Paper White keeps the trim and ceiling clean and quiet overhead. Underfoot, Walnut Brown floors bring the whole room down to earth and stop the sage from drifting too cool.
The spark is Inkwell Green, a near-black forest tone for a bookshelf back, a door, or one moody accent wall. It pulls the palette toward something a little more contemporary and gives the room real depth. Lead with the sage, let the neutrals do the quiet work, and save the ink-green for one confident move.