🎨 Color Mixing Ratio
Mixing ratios to achieve custom paint colours
About this calculator
The Color Mixing Ratio calculator converts paint mixing into repeatable recipes. Enter the parts of each color in your mixture — for example 3 parts titanium white to 1 part ultramarine — and a target batch size; it converts ratios into ounces or milliliters per color. Consistent ratios mean you can remix the exact tint months later.
Tip: always record ratios by weight or volume, never by squirts — and mix 20 percent more than you need, because matching a dried batch later is nearly impossible.