For new and seasoned painters
Any colour you want, on your palette in minutes.
Point your camera, drop a photo or paste a hex, and Chromilla gives you an exact mixing formula plus a preview swatch of the colour you'll get on the palette, for acrylic, oil or watercolour. No colour theory degree required, just start painting.
- 01
Capture the colour
Point your camera, sample a photo, paste a hex, or use the picker. Whatever you see, Chromilla can read.
- 02
Pick your paint
Acrylic, oil or watercolour. Each gets mixing tips tuned to how that paint actually behaves.
- 03
Mix and paint
See the exact tubes and ratios. Mix once on your palette and get back to the painting.
Pick a colour
targetFor best accuracy, sample in neutral daylight or consistent indoor light. Avoid sampling under warm or coloured bulbs. It will shift the result.
Camera frames stay on your device. Nothing is uploaded.
Pick a brand to calibrate ratios to your tubes, or stay on Generic for a brand-agnostic mix.
Mixing Formula
Parts are by volume.
More tools, in the full plan.
The mixer above is always free. These tools add history, saved formulas and deeper analysis.
Full plan
Almost there but not quite? Sample your mix and your target - get the precise tube and amount to nudge it the rest of the way.
Trace a shape - Chromilla pulls its highlight, midtone and shadow, each with a recipe.
Tell Chromilla which tubes you're working with - every recipe stays inside that palette.
Session Mode premium
Mix together — date nights, sip & paint, workshops. Up to 10 guests join from their phone, no account needed. Everyone shares your medium, brand and palette.
How Chromilla mixes paint
Chromilla uses subtractive Kubelka-Munk mixing on real pigment data and calibrates each recipe against the tubes from your brand. We normalise for tinting strength and dry-down per medium, so the parts you see are the parts you actually squeeze.
Read the full method“I've wasted less paint in the last month than I used to waste in a week. The ratios are genuinely accurate.”
Jamie · Oil
“Finally mixed the exact skin tone I had in my head. Took about 30 seconds.”
Priya · Watercolour
“Game changer for Sundays when I only have an hour. No more guessing.”
Tom · Acrylic
Frequently asked questions
- Does it work for acrylic, oil and watercolour?
- Yes. Chromilla supports acrylic, oil and watercolour, and adjusts the recipe for each medium. Watercolour accounts for dilution and dry-down lift, oil accounts for the slower binder and richer gloss, and acrylic accounts for the colour shift as it dries.
- How accurate are the mixing ratios?
- Chromilla uses Kubelka-Munk style subtractive mixing on real pigment data (PB15, PR108, PW6 and friends), then calibrates against your selected brand's pigment load and tinting strength. Most mixes land within a small nudge of the target on the first try; for the last 1–2% of accuracy you can use Mix Correction to compare your wet mix to the target and get a correction tip.
- Is Chromilla free to use?
- The mixer is free, no account needed. Get full recipes for any colour, any time. A free account adds mix history and saved formulas. Mix Correction, Area Sampler, Photo palettes and the Palette Builder are included in the Full plan. Start with a free 7-day trial (card required), then $8.99/month. Cancel any time before the trial ends and you won't be charged.
- Does it work on mobile?
- Yes. Chromilla runs in any modern mobile browser and is designed for use at the easel. Point your phone's camera at a reference, sample a colour, and get the recipe instantly. No app install required.
Start mixing the colours you actually want.
Cancel any time.