'Blue' in the Bible

There were hangings of white cloth , of green, and of blue, fastened with cords of fine linen and purple to silver rings and pillars of marble: the couches were of gold and silver, upon a pavement of red, and white, and yellow, and black marble.

And Mordecai went forth from the presence of the king in royal apparel of blue and white, and with a great crown of gold, and with a robe of fine linen and purple: and the city of Shushan shouted and was glad.