Ultramarine Blue
 
Joules & Joules Ultramarine Blue Matte Acrylic Paint is a deep, dark blue with slightly violet undertones, high transparency, and intense brilliance upon application. It has moderate tinting strength and soft coverage, allowing for gradual layering and delicate nuances. Its fast drying time and matte finish make it ideal for precise applications, glazes, and details that require absolute control over chromatic intensity.
 
Historically, Ultramarine Blue was extracted from lapis lazuli, a mineral prized since antiquity for its intense color and durability, and highly valued by Renaissance painters as well as later by Impressionist and Post-Impressionist artists. The modern synthetic version preserves the depth and purity of the original color while offering greater stability, lightfastness, and ease of use, maintaining the aesthetic richness and artistic legacy of the natural pigment.
 
With a lightfastness rating of I (Excellent), Ultramarine Blue Matte Acrylic Paint delivers exceptional durability across a wide range of painting techniques. Although sensitive to weak acids, which may cause discoloration, it retains its intensity and saturation under normal conditions of use. It is an
indispensable choice for artists seeking a classic, sophisticated, and stable blue capable of adding depth and elegance to their compositions.
 
Pigment Classification
Synthetic Inorganic Pigment
 
Chemical Composition
Complex Sodium Aluminum Sulfosilicate – Na₆–₈Al₆Si₆O₂₄S₂–₄
 
Color Index
PB 29
 
Binder
Acrylic Resin
 
Transparency/Opacity
Transparent
 
Lightfastness
I (Excellent)
 
Tinting Strength
Medium
 
Drying Time
Fast
 
Notes
Rapidly discolored by the action of weak acids, which attack it by forming hydrogen sulfide.
 
Toxicity
Not considered toxic; however, ingestion, contact with eyes, and prolonged skin contact should be avoided.
 
MSDS (Safety Data Sheet)
Available on the website here.
 
Series
2
 
Availability
37 ml and 100 ml tubes, and 250 ml jars.