The 60-30-10 rule means applying 60 percent warm neutrals like khaki or ivory for walls, 30 percent rich greens or muted sage on furniture or built-ins, and 10 percent accents in bold reds or coffee-browns. This rule keeps 2026 paint colors balanced and visually interesting. It promotes easy styling over time while preventing rooms from feeling too dark or busy, ideal for living rooms, kitchens, and entryways.