1º_ It is the fifth color on the iridescent scale. Its decimal code is 0, 0, 255 and the hexadecimal 0000FF. The name comes from the Arabic 1604; 1575; 1688; 1608; 1585; 1583; ( laazurd "lapis lazuli" ), for being the same tone of that mineral . 2º_ It is also a woman's name. 3º_ There are several localities called totally or partially with the name of 'Blue'.