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GrumbacherPaints

Grumbacher Academy Oil Color - French Ultramarine Blue, 150 ml tube

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  • Blick Art Materials
    $17.42 USDShop
    Recorded Oct 21, 2026, 12:39 PM UTC

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Product details
Size
150 ml
Blick SKU
00418-5274
About this product range

Grumbacher Academy Oils are available in a range of 45 highly pigmented colors offering superior tinting strength at an affordable student price. The line includes a variety of single-pigment colors, as well as mixed hues and metallics. Every color in the range boasts an ASTM lightfast rating of ‘1-Excellent’ and most correlate to the Pre-Tested Professional line, allowing students to graduate to a professional-grade paint with ease.

The majority of colors in the range are ground in pure linseed oil. Titanium White Soft is ground in a mixture of linseed and poppyseed oil. Titanium White, Unbleached Titanium White, Zinc White, Pale Pink, Lemon Yellow, and Thalo Silver are ground in sunflower oil.

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.

Ultramarine [Blue]

Pigment code
PB29
Type
inorganic
Chemical name
complex silicate of sodium and aluminum with sulfur
Chemical formula
Na8-10Al6Si6O24S2-4 or Na6-8Al6Si6O24S2-4
Properties
Ultramarine is the standard warm blue, a brilliant blue pigment that has the most purple and least green in its undertone. It has a moderate to high tinting strength and a beautiful transparency. Synthetic Ultramarine is not as vivid a blue as natural Ultramarine. Ultramarine dries slowly in oil and tends to produce clean, though granular, washes in watercolor. French Ultramarine mixes well with Alizarin colors in oil and watercolor form to create a range of purples and violets. It can dull when mixed with white in acrylic form, but mixes well with other colors. The shade varies based on manufacturer. Considered a great color for glazes, it is not suitable for frescoing.
Permanence
Ultramarine has excellent permanence, although synthetic Ultramarine is not as permanent as natural Ultramarine. It may discolor if exposed to acid because of its sulfuric content.
Toxicity
Ultramarine has no significant hazards.
History
The name for this pigment comes from the Middle Latin ultra, meaning beyond, and mare, meaning sea, because it was imported from Asia to Europe by sea. It is a prominent component of lapis lazuli and was used on Asian temples starting in the 6th century. It was one of the most expensive pigments in 16th century Europe, worth twice its weight in gold, and so was used sparingly and when commissions were larger. Ultramarine is currently imitated by a process invented in France in 1826 by Jean Baptiste Guimet, making blue affordable to artists and extending the range of colors on their palettes.
Description
Artificial Ultramarine, French Blue, French Ultramarine, Gmelin's Blue, Guimet's Blue, Permanent Blue, Royal Blue, Synthetic Ultramarine. New Blue describes particular shades of Ultramarine. Armenian Blue and Lazuline Blue are names for genuine Lapiz Ultramarine. Sky Blue is a pale tone of Ultramarine.

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