Da Vinci Artists' Permanent Watercolor - Cobalt Violet Deep, 37 ml tube

Name: Da Vinci Artists' Permanent Watercolor - Cobalt Violet Deep, 37 ml tube
Brand: Da Vinci Paints

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$24.05

Blick Art Materials · recorded Oct 22, 2026, 1:49 AM UTC

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Product details

Size: 37 ml
Blick SKU: 00371-6533

About this product range

Da Vinci takes the name of their company very seriously. Their paints are exciting, intense, and rated among the best in the world for quality. The paints are permanent, with the highest tinting strength and pigment concentration available. However, they are especially soft, with a creamy consistency for smooth, easy dispersion with water. Available in both 15 ml (.51 oz) and 37 ml (1.25 oz) tubes. Da Vinci paints conform to artist's quality standard ASTM D-5067, and to safety standard ASTM D-4236.

Pigment information

General reference notes about pigments can describe other media (such as oil). They do not verify this product’s exact formulation or behavior.

Cobalt Blue

Pigment code: PB28
Type: inorganic
Chemical name: cobalt(II) oxide + aluminum oxide
Chemical formula: CoO + Al2O3
Properties: Cobalt blue is a semitransparent pigment with low to moderate tinting strength. When it dries, it appears lighter and less saturated. Pigment particles are large and grainy. Differences in how the pigment is ground and mixed lead to considerable differences in its performance among various manufacturers.
Permanence: Cobalt blue is absolutely lightfast and extraordinarily stable. The stability of cobalt salts at high temperatures make them the standard for blues used in ceramics and glassware.
Toxicity: Cobalt salts are toxic. Avoid respiratory and skin contact. Soluble cobalt may cause irritation and allergic reaction through contact with skin. It is considered a possible carcinogen.
History: Since ancient times, smalt blue has been used to color glass and ceramics. Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century. Techniques for manufacturing Cobalt Blue, a chemically pure salt of cobalt and aluminum oxide, were developed in 1802.
Description: Smalt Blue

Cobalt Violet

Pigment code: PV14
Type: inorganic
Chemical name: cobalt phosphate
Chemical formula: Co3(PO4)2
Properties: Cobalt Violet is a pure hue that cannot be mixed from other colors. It is cool in its masstone, chemically stable, and semi-opaque. It has a weak tinting strength and is generally offered in a bluish and a reddish-violet shade. Cobalt Violet can be quite expensive, so it is used mostly as a top coat color. It is compatible with all painting media, but its light variety can change in oil form. It grays down considerably when mixed with white. Manganese Violet is a less costly substitute for the bluish variety of Cobalt Violet.
Permanence: Cobalt Violet has excellent permanence, and its lightfastness makes it more desirable than older organic dye violets.
Toxicity: Cobalt Violet is highly toxic by both ingestion and inhalation, particularly in dry pigment form. However, much of the material presently used to make paints of this color is non-toxic cobalt phosphate.
History: Cobalt comes from the Middle High German word kobolt, an underground goblin, because miners thought cobalt harmed silver ores. Cobalt Violet was the first real violet pigment and was described by Salvetat in 1859. The light variety of this pigment, developed in Germany earlier in the 19th century, was particularly poisonous due to its arsenic content. Cobalt Violet hues were the only permanent bright violets available to artists until the 1950s.