Deep green 2026 paint colors, like Behr Hidden Gem or Dunn-Edwards Midnight Garden, work best in intimate or smaller spaces like powder rooms, bedrooms, or reading nooks. These colors add a jewel-like richness that feels cozy and intentional. Pair deep greens with brass accents and warm wood tones to brighten the space and maintain warmth. Starting with small areas lets you enjoy the bold color without overwhelming your whole home.