Blue pigments
Natural or synthetic materials
Blue pigments
Blue pigments are natural or synthetic materials, traditionally made from minerals. Being water-insoluble by definition, blue pigments used to make the blue colors in inks and paints. Some major blue pigments are indigo, Prussian blue, and copper phthalocyanine. Historically, lapis lazuli was important.
Read on Wikipedia · Image David Stroe, CC BY-SA 3.0
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