French Ultramarine – Series 3

Available Sizes:         


Art Spectrum® French Ultramarine is a rich, transparent blue. Developed in 1828 by the French chemist Jean-Baptiste Guimet, it is a synthetic but indistinguishable alternative to the costly pigment derived from Lapis Lazuli.

Pigments Lightfastness Permanence Opacity Granulating /Staining
PB29 ASTM I ****         (excellent) Semi-Transparent Granulating

ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.

In accordance with proven traditional methods of production, all Art Spectrum® Artists’ Watercolours are carefully stone milled to enhance the individual brilliance of each selected permanent pigment and to maximise its handling qualities.