





Cobalt Blue - An Iconic Blue
PB28 - Semi-transparent - Granulating
Ideal for landscapes, Cobalt Blue excels in skies, calm waters, and distant mountains. Its granulating nature is perfect for textured effects and organic details.e. Bright and close to primary blue. We can define it as the most blue of blues because it does not draw on green (like Prussian blue) or red (like overseas).
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Cobalt Blue is an iconic and timeless shade in watercolor. With its soft, slightly granulating glow, this mid-tone light blue is cherished for the smooth gradients it can create.
Discovered in the early 19th century, Cobalt Blue quickly replaced certain pigments like natural Ultramarine (which was very expensive) or Prussian Blue (which was initially unstable). Originally developed for the ceramics industry, as this pigment can be fired at over 1200°C without losing its blue hue, it was also adopted by painters for its beauty and permanence.
Cobalt Blue is a versatile pigment that pairs harmoniously with many colors. With a touch of Burnt Sienna, it creates subtle greys and atmospheric shadows. Combined with Isaro Rose, it produces elegant, luminous purples.
Data sheet
Reference | A02 |
---|---|
Pigment: | PB28 |
Mono-pigmented: | Yes |
Granulation: | Granular |
Opacity: | Semi-transparent |
Tint power: | Average |
Pigment family: | Synthetic mineral pigment |
Binder: | Distilled water, gum arabic, honey, vegetal glycerine |
Cotation - Blue lightfastness scale: | 8 |
Lightfastness: | Good |
Percentage of méthylisothiazolinone (preserservative): | between 0,1 and 0,7% |
Colors | Blue |