Apply the 60-30-10 interior design rule to room color proportions. Free online interior design calculator with instant, accurate results.
A quick decision brief for this specific tool
Room Floor Area, Dominant Color %, Secondary Color %, Accent Color %
Room Accent Ratio (60-30-10)
1 documented formula across 1 calculation mode
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This page shows the available inputs, calculation steps, and recorded method or source notes for Room Accent Ratio (60-30-10). Source coverage varies by tool; independently confirm consequential results.
This page shows the available inputs, calculation steps, and recorded method or source notes for Room Accent Ratio (60-30-10). Source coverage varies by tool; independently confirm consequential results.
This page shows the available inputs, calculation steps, and recorded method or source notes for Room Accent Ratio (60-30-10). Source coverage varies by tool; independently confirm consequential results.
Updated: July 2026
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The Room Accent Ratio (60-30-10) provides precise, instant unit conversions and calculations for professional, educational, and field applications. Designed for accurate results based on standardized physical and mathematical formulas.