PWC Extra Fine Professional Watercolor - Cerulean Blue, 15 ml, Tube

Item #:86302-5162
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PWC Extra Fine Professional Watercolor - Cerulean Blue, 15 ml, Swatch with Tube
PWC Extra Fine Professional Watercolor - Cerulean Blue, 15 ml, Swatch with Tube
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AP Non-Toxic.

Products bearing the AP seal of the Art & Creative Materials Institute, Inc. (ACMI) are certified non-toxic. A product can be certified non-toxic only if it contains no materials in sufficient quantities to be toxic or injurious to humans, or to cause acute or chronic health problems.

Product Details

Cerulean Blue
Extra Fine Professional Watercolor
15 ml (.5 oz)

Pigment Information

This color contains the following pigments:

PB35-Cerulean Blue

Pigment Name

PB35-Cerulean Blue

Pigment Type


Chemical Name

cobalt(II) stannate

Chemical Formula

CoO n SnO2


Cerulean Blue is the standard cool blue, considered the traditional counterpart to Ultramarine, and is often used for painting atmospheric shades. It is quick drying and retains its color well, better than any other blue, in oil paint form. However, it tends to granulate or become chalky in watercolors. It has limited hiding power, is semi-opaque, and is easy to control. Its tinting capacity is low, so it can become lost when mixing.


Cerulean Blue has excellent permanence. It is very stable and lightfast.


Cerulean Blue is moderately toxic if inhaled or ingested and slightly toxic if it comes into contact with skin.


The name Cerulean Blue comes from the Latin word caelum, meaning sky. This pigment was discovered in 1805 by Andreas Hopfner, but it was not widely available until introduced by Messrs. G. Rowney & Co. in England under the name coeruleum in 1860 for use in aquarelle and oil painting. It was produced by the action of heat on cobalt oxide and other metallic bases.

Safety Data Sheet

UPC Code: 8803332570775