Something cobalt blue
/From cute peep-toes from Paul & Joe Sister, over adorable retro heels and flat sandals, to cool comfy flats, I love them all. Which shoes are you going for on your wedding day? I love all blues not just cobalt, but was is the cobalt trend all about?
Fun (and not so fun) Facts about cobalt: Cobalt blue in numbers with hex and rgb values #0047AB, rgb(0,71,171) Wikipedia says: Cobalt blue is the cool blue color of the pigments made using cobalt salts of alumina. Cobalt blue pigments are extremely stable, and have historically been used as coloring agents in ceramics, (especially Chinese porcelain), jewellery, and paint. Transparent glasses are tinted with the silica-based cobalt pigment. Chemically, cobalt blue pigment is a cobalt oxide-aluminium oxide, or cobalt aluminate, CoAl2O4. The compound is made by sintering finely ground CoO and Al2O3 (alumina) at 1200 °C. Cobalt blue is lighter and less intense than (iron-cyanide based) Prussian blue. Cobalt blue in impure forms had long been used in Chinese porcelain, but it was independently discovered as a pure alumina-based pigment by Louis Jacques Thénard in 1802. Commercial production began in France in 1807. The first recorded use of cobalt blue as a color name in English was in 1777. The leading world manufacturer of cobalt blue in the 19th century was Benjamin Wegner's Norwegian company Blaafarveværket, ("blue colour works" in Dano-Norwegian). Germany was also famous for production, especially the blue colour works (Blaufarbenwerke) in the Ore Mountains of Saxony.