How to mix Cobalt Blue in watercolour
A pure, mid-value blue. Neutral leaning — neither warm nor cool. This guide gives you the pigment ratios that land on #2E4C99 in watercolour, using the same solver that powers the Chromilla mixer.
Target
Cobalt Blue
#2E4C99
Mixed result
From these pigments
#34507A
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. Viridian Green
PG18
74%2. Ultramarine Blue
PB29
26%
Get this recipe for your paint brand
Open the live mixer with Cobalt 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.