Think of navy in a dining room the way you would a dark roast in a small cup — concentrated, warm, and best enjoyed in the evening. Midnight Harbor wraps the walls in that deep tone, and because most dining happens after sunset, lamplight turns it from formal into welcoming.
To keep it from going flat, Soft Linen White lifts the trim and ceiling, while Greige Mist gives cabinets or a sideboard a calm, slightly contemporary neutral that bridges the navy and the wood. Warm Oak then brings in honest grain through the table and floors, which is what stops the whole scheme from feeling cold.
The last move is restraint. A touch of Slate Charcoal on chair legs, a frame, or a light fixture sharpens the edges without competing with the navy. Let Midnight Harbor lead, give the wood and white plenty of room to breathe, and use the charcoal in small doses.