Color Ratio Calculator

Apply the 60-30-10 color rule to your room. Calculate ideal dominant, secondary, and accent color areas based on your surfaces.

Room Floor Area

sq ft

Wall Area

sq ft

Ceiling Area

sq ft

Floor Area (visible)

sq ft

Furniture Surface Area

sq ft

Tab to move between fields

Dominant Color (60%)

576 sq ft

≈ 13 king-size beds

Secondary Color (30%)

288 sq ft

≈ 7 king-size beds

Accent Color (10%)96 sq ft

Current Dominant %70.8%

Current Secondary %20.8%

Current Accent %8.3%

How to Use This Calculator

Enter Room Floor Area, Wall Area, and Ceiling Area.
Set Floor Area (visible) and Furniture Surface Area.
Review Dominant Color (60%) (sq ft) and Secondary Color (30%) (sq ft).
Use Accent Color (10%) (sq ft) and Current Dominant % (%) to inform your decision.

How the result changes with Wall Area

Room Floor Area: Floor area of the room for reference.
Wall Area: Total wall surface area (perimeter × height minus openings).
Ceiling Area: Ceiling surface area (typically equals floor area).
Floor Area (visible): Visible floor area including rugs and floor coverings.
Furniture Surface Area: Visible upholstery, tabletops, and accessory surfaces.

Dominant Color (60%): Ideal area for the dominant/primary color (walls, ceiling).
Secondary Color (30%): Ideal area for the secondary color (flooring, large furniture).
Accent Color (10%): Ideal area for accent color (accessories, art, throw pillows).
Current Dominant %: Your walls + ceiling as a percentage of total visible area.
Current Secondary %: Your floor as a percentage of total visible area.
Current Accent %: Your furniture surfaces as a percentage of total visible area.

Identify Input Parameters
4 parameters
Room Floor Area = 200, Wall Area = 480, Ceiling Area = 200, Floor Area (visible) = 200 = 5 input(s) provided
Calculate Dominant Color
Dominant Color
576 = 576
Calculate Secondary Color
Secondary Color
288 = 288
Calculate Accent Color
Accent Color
96 = 96
Calculate Current Dominant %
Current Dominant %
70.8 = 70.8%