1. A vivid blue to purple-blue colour
   "The artist used ultramarine to paint the ocean in his seascape"
    
2. Blue pigment made of powdered lapis lazuli
   "The artist used ultramarine blue to create a stunning sky in her painting";
   - ultramarine blue

1. Of a brilliant pure blue to purplish blue colour
   "The ultramarine sea stretched to the horizon"

Derived forms: ultramarines

See also: chromatic

Type of: blue, blueness, pigment

Encyclopedia: Ultramarine