Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en ultramarine violet300013695outremer violetviolet ultramarine Pigment having a rosy violet color, produced in the manufacture of synthetic ultramarine blue. Ultramarine violets and reds were developed in Germany ca. 1875; they are produced by treating ultramarine blue with sal ammoniac or dry hydrochloric acid gas at high temperatures. Ultramarine violet is stable, but it has poor tinting strength and is rarely used in artists' paints. violeta ultramar violeta ultramar 2026-03-30 20:58:03