🌈 Color Mixing Calculator
Enter your dye colors as parts — a ratio like 1:1:2 — and a batch weight, and get the exact proportions and weigh-out grams for each color, ready to reproduce batch after batch.
🌈 Build Your Custom Shade
What is a Color Mixing Calculator?
Custom colours come from blending a handful of base dyes in a fixed ratio — and the moment you want to repeat that colour at a different scale, you need the maths. This calculator takes your colors as parts, works out each one's share of the mix, and converts it to grams for any batch weight, so a shade you love is never a one-off.
Use it to formulate a new colour, document a recipe so you can hit it again, or scale a swatch mix up to a production batch. The results are estimates for planning; test on a sample swatch first, since dye strength and fibre affinity differ between colors and brands.
❓ Frequently Asked Questions
How does the color mixing calculator work?
Enter each dye color and how many parts it contributes — say 1 part yellow, 1 part red, and 2 parts blue. It sums the parts (4 here), then gives each color's percentage (25%, 25%, 50%) and the grams to weigh out for your batch weight. For a 100 g batch that's 25 g, 25 g, and 50 g, so a 1:1:2 ratio scales cleanly to any quantity.
Why mix dyes by parts instead of by grams?
Parts describe the ratio, which is what actually defines the colour — and a ratio scales to any batch size, so the same 1:1:2 recipe works for a swatch or a full bolt. The calculator does the grams for whatever batch weight you set, so you record the easy-to-remember ratio and let the maths handle the weigh-out.
Will the mix give me the exact shade every time?
These are estimates for planning; test on a sample swatch first. Dye strengths differ between colors and brands, and fibre affinity varies, so the same ratio can read differently on cotton versus wool. Verify the mix on a swatch, tweak the parts if needed, then scale up with confidence.