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Calculate paint gallons for walls and ceilings. Enter room dimensions, coats, and coverage rate to get primer and paint gallons with waste allowance.
Professional color picker with HEX, RGB, and HSL conversion, WCAG contrast checking, and palette generation. Pick colors and copy CSS-ready values instantly.
Estimate primer gallons from surface area and substrate type. Calculate stain-blocking, drywall, and masonry primer for proper paint prep coverage rates.
Express color recipe as percentages summing to 100%. Multiply each percentage by total batch volume.
Component Volume = Total Batch × (Component % ÷ 100)Commercial tints are concentrated — small ml changes shift color significantly. Test 100 ml sample before full batch.
Tint oz = (Target ΔE × Base Volume) ÷ Tint Strength FactorMix test sample, verify dry color, then scale all components proportionally to project quantity.
Scaled Volume = Sample Volume × (Project Gallons ÷ Sample Gallons)Updated: July 2026
Recipe: 85% white base, 8% yellow oxide, 4% blue, 3% black tint. Scale to 946 ml quart for accent wall touch-up.
Mix 100 ml sample before ordering gallons. Document exact ml of each tint for scalable formula.
Start from colorimeter RGB values converted to tint ratios. Blend 2 gal scaled from approved 100 ml sample formula.
Blend custom paint colors from base white, black, and primary tint stocks for small batches and touch-ups. Enter target color component ratios and total batch volume to get precise milliliter or ounce amounts for each tint component.