The Impressionists created violet by glazing cobalt blue or ultramarine with red, or by using new cobalt and manganese violet pigments that had become available to artists.

印象派画家通过在钴蓝色或群青色上涂一层红色来得到紫色，或者直接使用当时已经开始生产的紫色钴锰颜料。

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Colors of this beautiful gemstone range from light violet-blue to ultramarine blue.

这个美丽的颜色范围从光宝石紫，蓝群青。

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Talc, Zinc Stearate, Phenyl Trimethicone, Iron Oxide Brown, Ferric Ammonium Ferrocyanide, Chrome Oxide Green, Ultramarine Blue, Hydrated Chrome Oxide Green.

滑石，硬脂酸锌，苯基三甲基聚矽氧烷，氧化铁棕，氧化铁氨，氧化铬绿，人工合成群青蓝，水氧化铬绿。

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German artist Katharina Fritsch's idea of a huge cockerel in ultramarine blue is aimed at injecting colour into the square.

BBC: Trafalgar Square fourth plinth candidates unveiled

More aptly chosen is a second sunflower image of 1887 from the Metropolitan Museum of Art, depicting two slightly wilted blossoms lying on a rich ultramarine blue tablecloth.

WSJ: Vincent Van Gogh Up Close | Philadelphia Museum of Art | A Matter of Perspective | By Jonathan Lopez