Matisse Mineral Blue is a soft grey-blue as is sometimes seen in rocks and minerals. While it is not so bright as most other blues available to the artist, its subtlety is very useful in many situations. Like its darker cousins, Paynes Grey and Midnight Blue it is best off being thought of as a cool blue gray, or as a soft and muted blue for mixing purposes. It is similar in usage and color to the color known during the Renaissance as Ultramarine Ashes.
Chemical Description: Blend Titanium dioxide, Sodium aluminosulphosilicate & Copper phthalocyanine
Pigment Number: PB29 PW6 PB15.3
Lightfastness Rating: ASTM I
Pigment Opacity: Opaque
Paint Opacity: Opaque