DIY

Paint Color Mixing Ratios

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate paint mixing ratios for custom colors. Parts by volume for two or three paint colors.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Custom Paint Mixing
Color Mixing Rules

Mélange Soustractif

Rouge + bleu = violet. Jaune + bleu = vert. Rouge + jaune = orange. Blanc éclaircit (teinte). Noir fonce (nuance). Mélangez toujours plus que nécessaire — reproduire un mélange manuellement est quasi impossible.

Proportions

Changements subtils : peu de peinture secondaire. Bleu → bleu-vert : 1 part vert pour 10 de bleu. Tons pastel : 1 part couleur pour 5-10 de blanc.

⚡ CalcWolf Insight

Professional painters never mix custom colors by feel — they use precise measurements and record the exact ratio. Keep a written record of your custom mix (e.g., "32 oz Color A + 12 oz Color B") so you can reproduce it if needed. Take a photo of the dried result next to the ratio for future reference.

Frequently asked questions

Comment mélanger la couleur parfaite ?▾

Commencez par le plus clair, ajoutez le foncé en petites quantités. Notez les proportions exactes.

Pourquoi la couleur change en séchant ?▾

La peinture sèche généralement plus claire. Testez sur un échantillon et laissez sécher complètement.

✓ Math logic verified against primary sources → See our verification process

Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →