How to mix Ultramarine Blue in watercolour
A deep violet-leaning blue. Warm, granulating, and endlessly useful. This guide gives you the pigment ratios that land on #2A3A8C in watercolour, using the same solver that powers the Chromilla mixer.
Target
Ultramarine Blue
#2A3A8C
Mixed result
From these pigments
#273783
Pigment recipe
Ratios calibrated for watercolour. Start with the dominant pigment, add the modifiers in the order below, and adjust in 5% steps to your target swatch.
1. Ultramarine Blue
PB29
69%2. Viridian Green
PG18
31%
Get this recipe for your paint brand
Open the live mixer with Ultramarine Blue + watercolour pre-loaded and calibrate to your tubes.
Related mixing guides
Pigment mixing is subtractive — small ratio changes matter. The mixer refines this recipe to your brand and updates on the fly.