Western conventional colors Cobalt blue
Western conventional colors 
Traditional Italian colors What is Blu Cobalto? An explanation of the origin, history, and color scheme of this traditional Italian color.
Traditional Italian colors What is Smaltino? An explanation of the origin, history, and color scheme of this traditional Italian color.
Gemstone Color Encyclopedia What is Cobalt Spinel? Explanation of the origin and meaning of its gemstone color, and its color combinations.
Gemstone Color Encyclopedia What is Hauyne? An explanation of the origin, meaning, and color scheme of this gemstone color.
Traditional French Colors What is Bleu de Cobalt? An explanation of the origin, history, and color scheme of this traditional French color.
Traditional French Colors