This pre-mixed colour is a semi-transparent blue gray. Highly lightfast and mildly staining, Payne's Gray is a cool dream in a wet sky. Use this pigment instead of Indigo, except where yellow is involved. Payne's Gray helps create flat ocean waters and "after the storm" clouds and skies. Rocks and granite boulders, including their shadows, can be quickly rendered with light dilute washes or more concentrated brush loads. Light fastness: Excellent Low Staining Granulation: Yes Semi-Transparent