15. Mordecai went out . . . in royal apparel—He was invested with the khelaat of official honor. A dress of blue and white was held in great estimation among the Persians; so that Mordecai, whom the king delighted to honor, was in fact arrayed in the royal dress and insignia. The variety and the kind of insignia worn by a favorite at once makes known to the people the particular dignity to which he has been raised.