Royal Copenhagen’s blue pigment is called cobalt zinc silicate and it is the cobalt that provides the distinctive blueness. In its infancy, Royal Copenhagen obtained their cobalt from Norwegian ‘Blaafarveværket’, the ‘blue colour factory’ a company that was responsible for between 70 and 80 percent of all global cobalt production throughout the 19th century.
Blue has innumerable shades and nuances. The truest and purest blue, cobalt, is used for decorating the classic Royal Copenhagen blue fluted service. Thousands of years before this, from as far back as 2600 BC, Egyptian and various other civilisations used cobalt to create intensely blue colour for glassware, glazing and ceramics.