Lighter Prussian Blue
#25495C
6 parts Phthalo Blue, 3 parts Titanium White and 1 part Ivory Black. Chromilla's model predicts a 97% dry match against the target, scored against its own color model, not a measured paint-out.
How to Mix Prussian Blue in Oil
Quick answer
To mix prussian blue (#0F3446) in oil, use 2 parts Phthalo Blue to 1 part Yellow Ochre. Chromilla's model predicts a 99% dry match against the target, scored against its own color model, not a measured paint-out. Chromilla is a web-based paint color mixer that turns any color, from a photo, the camera or a hex code, into exact paint-tube ratios for acrylic, oil and watercolor, using Kubelka-Munk pigment mixing and aiming at the color after it dries.
Target
Prussian Blue
#0F3446
Predicted dry result
99% match when dryMix to #0C3346. It dries true to color.
| Paint | Pigment | Parts | Share | 100 ml batch |
|---|---|---|---|---|
| Phthalo Blue | PB15 | 2 | 66% | 66 ml |
| Yellow Ochre | PY43 | 1 | 34% | 34 ml |
How we calculated this: Kubelka-Munk pigment mixing, then a per-medium dry shift, scored with CIEDE2000. Method and accuracy benchmark. Last checked August 2026.
Terms used here: Tinting strength, Dry shift, Kubelka-Munk, Delta E (dE2000), Pigment code, Gamut.
A very dark, cool green-shade blue. Rich, staining, glass-like in oil. This guide gives you the pigment ratios that land on #0F3446 in oil, using the same solver that powers the Chromilla mixer.
Pigment recipe
Checked August 2026
Ratios calibrated for oil. Start with the dominant pigment, add the modifiers in the order below, and adjust in 5% steps to your target swatch.
1. Phthalo Blue
PB15
66%2. Yellow Ochre
PY43
34%
What colors make Prussian Blue?
Phthalo Blue and Yellow Ochre, in roughly a 66:34 ratio.
How to make Prussian Blue in oil
Start with Phthalo Blue at about 66% as your oil base, then work in Yellow Ochre in the order above. Adjust in 5% steps until the swatch reads #0F3446.
Why mix Prussian Blue instead of buying it
Mixing Prussian Blue yourself lets you approximate an expensive or hard to find tube from pigments you already own, match Prussian Blue across paint brands whose factory tubes differ, and rebuild the exact color when you run out mid painting. The recipe above is the working starting point.
Common mistakes
That pigment is a very strong tinter, add it a touch at a time or it will swallow the mix.
Variations on Prussian Blue
Each variation is its own target (lighter and darker move OKLCH lightness by 0.08; warmer and cooler turn the hue 12 degrees toward red or blue), solved fresh.
Darker Prussian Blue
#00202F
6 parts Phthalo Blue to 1 part Ivory Black. Chromilla's model predicts a 96% dry match against the target, scored against its own color model, not a measured paint-out.
Warmer Prussian Blue
#173249
3 parts Phthalo Blue to 1 part Yellow Ochre. Chromilla's model predicts a 96% dry match against the target, scored against its own color model, not a measured paint-out.
Cooler Prussian Blue
#173249
3 parts Phthalo Blue to 1 part Yellow Ochre. Chromilla's model predicts a 96% dry match against the target, scored against its own color model, not a measured paint-out.
Prussian Blue questions
- What two colors make prussian blue?
- In oil, Phthalo Blue and Yellow Ochre: 2 parts Phthalo Blue to 1 part Yellow Ochre. Chromilla's model predicts a 99% dry match against the target, scored against its own color model, not a measured paint-out.
- How do you make prussian blue paint lighter without losing the hue?
- Re-balance the mix instead of only adding white. For a lighter prussian blue (#25495C) in oil, Chromilla mixes 6 parts Phthalo Blue, 3 parts Titanium White and 1 part Ivory Black. Chromilla's model predicts a 97% dry match against the target, scored against its own color model, not a measured paint-out.
- What is the hex code for prussian blue?
- Chromilla uses #0F3446 as the target for prussian blue. The oil recipe is predicted to dry to about #0C3346.
- Can I mix prussian blue without black?
- Yes. Chromilla's oil recipe uses no black: 2 parts Phthalo Blue to 1 part Yellow Ochre.
Prussian Blue in other mediums
- Prussian Blue in Acrylic: 2 parts Phthalo Blue to 1 part Yellow Ochre, predicted 95% dry match by Chromilla's color model.
- Prussian Blue in Watercolor: 2 parts Phthalo Blue to 1 part Yellow Ochre, predicted 96% dry match by Chromilla's color model.
Get this recipe for your paint brand
Open the live mixer with Prussian Blue + oil pre-loaded and calibrate to your tubes.
Technique guides for this color
Related mixing guides
Pigment mixing is subtractive, so small ratio changes matter. The mixer refines this recipe to your brand and updates on the fly.