Name
Violet Opaque Pigment
Color
Deep purple to bluish violet
Opacity
High covering power
Not transparent
Blocks underlying colors
Common Pigment Types
Cobalt violet
Ultramarine violet
Dioxazine violet
Manganese violet
Chemical Composition
Varies by type
Cobalt-based pigments contain cobalt phosphate
Dioxazine contains carbon hydrogen nitrogen and oxygen compounds
Manganese violet contains manganese ammonium pyrophosphate
Uses
Used in painting
Printing inks
Plastics
Cosmetics
Ceramics
Lightfastness
Good to excellent depending on pigment type
Cobalt and manganese types are highly stable
Dioxazine may fade slightly in strong light
Toxicity
Some types like cobalt-based pigments can be toxic
Proper handling and ventilation recommended
Check safety guidelines before use
Compatibility
Mixes well with other opaque or semiopaque colors
May overpower lighter pigments due to strong tinting strength