Lighter Viridian
#3F8471
7 parts Yellow Ochre, 4 parts Titanium White and 3 parts Phthalo Blue. Chromilla's model predicts an 89% dry match against the target, scored against its own color model, not a measured paint-out.
To mix viridian (#256C5A) in watercolor, use 5 parts Phthalo Blue, 5 parts Titanium White and 3 parts Burnt Sienna. Chromilla's model predicts a 92% 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
Viridian
#256C5A
Predicted dry result
92% match when dryMix to #2C6C5A while wet. It dries to about #276355.
| Paint | Pigment | Parts | Share | 100 ml batch |
|---|---|---|---|---|
| Phthalo Blue | PB15 | 5 | 40% | 40 ml |
| Titanium White | PW6 | 5 | 37% | 37 ml |
| Burnt Sienna | PBr7 | 3 | 23% | 23 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 cool, transparent blue-green. The classic mixer for grays and shadows. This guide gives you the pigment ratios that land on #256C5A in watercolor, using the same solver that powers the Chromilla mixer.
Checked August 2026
Ratios calibrated for watercolor. 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
2. Titanium White
PW6
3. Burnt Sienna
PBr7
Phthalo Blue, Titanium White, and Burnt Sienna, in roughly a 40:37:23 ratio.
Start with Phthalo Blue at about 40% as your watercolor base, then work in Titanium White and Burnt Sienna in the order above. Adjust in 5% steps until the swatch reads #256C5A.
Mixing Viridian yourself lets you approximate an expensive or hard to find tube from pigments you already own, match Viridian 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.
That pigment is a very strong tinter, add it a touch at a time or it will swallow the mix. White cools and chalks a mix as you add it, so tint in small steps and stop before it goes pastel.
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.
#3F8471
7 parts Yellow Ochre, 4 parts Titanium White and 3 parts Phthalo Blue. Chromilla's model predicts an 89% dry match against the target, scored against its own color model, not a measured paint-out.
#025544
5 parts Yellow Ochre to 2 parts Phthalo Blue. Chromilla's model predicts an 89% dry match against the target, scored against its own color model, not a measured paint-out.
#316B50
35% Phthalo Blue, 34% Titanium White and 31% Burnt Sienna. Chromilla's model predicts a 92% dry match against the target, scored against its own color model, not a measured paint-out.
#1A6C64
5 parts Yellow Ochre, 3 parts Phthalo Blue and 2 parts Titanium White. Chromilla's model predicts a 90% dry match against the target, scored against its own color model, not a measured paint-out.
Open the live mixer with Viridian + watercolor pre-loaded and calibrate to your tubes.
Pigment mixing is subtractive, so small ratio changes matter. The mixer refines this recipe to your brand and updates on the fly.