French Ultramarine Blue

French Ultramarine Blue is a Series 2 semi-transparent color. It has a masstone of a deeply intense purple blue, with a rich purple blue undertone. This color is available in 60ml, 250ml and 500ml sizes.

Color Detail




Color Information

  • Chemical Description: Polysulfide of Sodium Alumino Silicate
  • Pigment Type: Inorganic
  • Lightfastness: 1
  • Permanency: Good – not for use outdoors
  • Pigment Strength: Medium
  • Colour Index Name: PB 29
  • Opacity or Transparency: Semi-transparent

Chroma is committed to the responsible use of art materials. Atelier is professional acrylic paint and not intended for use by children. Artists need to make personal decisions regarding the toxicity and dangers of the materials they use. Surface, temperature, humidity and paint application affect any paint’s performance.

Due to the individual nature of art, Chroma makes no express or implied warranties regarding the suitability of a particular paint for a particular situation. For detailed health and safety information, click here.