Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. colorant (material)
7. pigments
8. [pigment by color]
9. blue pigment

Anotations

Scope note:

A dark grayish blue or gray pigment mixture generally composed of ivory black with small amounts of white and blue, namely synthetic ultramarine blue, Prussian blue, or phthalocyanine blue. The pigment is used for watercolors.