Williamsburg Handmade Oil Paint - Phthalo Blue, 37 ml tube

Handmade Oil Paint

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$21.13

Blick Art Materials · recorded Oct 21, 2026, 8:22 AM UTC

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Product details
Size
37 ml
Blick SKU
01571-5173
About this product range

Dedicated to handmade integrity, Williamsburg Handmade Oils are crafted by skilled American artisans using top-quality pigments from around the world. Each of the more than 140 colors in the line possesses a unique consistency and texture — some are slightly gritty, while others are extremely smooth. This is what makes Williamsburg Handmade Oils so unique and prized by the painters who choose them.

Colors are made in small batches no larger than five gallons at a time to ensure the highest level of control. Pigments are carefully ground to enhance the beauty and luminosity specific to each, and then combined with pure, premium, alkali-refined and pH-balanced linseed oil. Every ingredient is hand-measured, and every batch is scrutinized for quality.

Most Williamsburg Oils are considered to have excellent lightfastness (LF I), with the exception of Alizarin Crimson and Van Dyke Brown, which have very poor lightfastness (LFIII).

__Special Edition Colors__ — Williamsburg offers four Special Edition iron oxide colors that utilize the same pigments as standard Williamsburg colors, but are milled to a finer consistency to make them suitable for glazing. Transparent Yellow Iron Oxide is based on Stil De Grain, with a dark yellow-brown masstone that gives way to amber and light ochre when glazing. Transparent Orange Iron Oxide is based on Italian Pink, and produces a very deep red-orange masstone that results in rich orange-red glazes. Transparent Brown Iron Oxide has its origins in Dutch Brown, and results in translucent brown glazes reminiscent of coffee or tanned leather. Transparent Red Oxide is a finer version of Brown Pink, and results in red tones reminiscent of stained cherry wood when glazing.

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.

Phthalo Blue

Pigment code
PB15:3
Type
organic
Chemical name
beta copper phthalocyanine
Chemical formula
C32H16CuN8
Properties
Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.
Permanence
Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.
Toxicity
Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).
History
Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.
Description
Phthalo Blue Green Shade, Winsor Blue Green Shade

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