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SchminckePaints

Schmincke Horadam Aquarell Watercolor - Phthalo Sapphire Blue, 15 ml tube

Horadam Aquarell Artist Watercolor

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  • Blick Art Materials
    $18.45 USDShop
    Recorded Oct 22, 2026, 12:47 AM UTC

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Product details
Size
15 ml
Blick SKU
00323-5162
About this product range
  • Professional quality
  • 140+ colors
  • Individually milled with finest quality pigments
  • Kordofan gum arabic
  • Exceptional re-wetting properties

Schmincke Horadam Aquarell Watercolor Tubes are crafted for the most vibrant and professional results. Since their first patent in 1892, they've been continually refined for over a century to deliver unmatched quality. Made with the finest artist pigments, these smooth, creamy colors glide effortlessly glide across any watercolor paper. Each of the 140+ stunning colors is individually milled to perfection—offering a consistently exceptional experience for every artist.

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
PB15:6
Type
organic
Chemical name
epsilon copper phthalocyanine
Chemical formula
C32H16CuN8
Properties
Phthalo Blue PB15:6 is a structural variant of Phthalo Blue PB15 that produces more yellowish 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.

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