'Clothed with Purple' in the Bible

The king called aloud to bring in the enchanters (Magi), the Chaldeans [who were master astrologers] and the diviners. The king said to the wise men of Babylon, “Whoever can read this writing and explain its interpretation to me shall be clothed with purple and have a chain of gold put around his neck, and have authority as the third ruler in the kingdom.”

But I personally have heard about you, that you are able to make interpretations and solve complex problems. Now if you are able to read the writing and reveal its interpretation to me, you shall be clothed with purple and have a chain of gold put around your neck, and you shall have authority as the third ruler in the kingdom.”

Then Belshazzar gave the command, and Daniel was clothed with purple and a chain of gold was put around his neck, and a proclamation concerning him was issued [declaring] that he now had authority as the third ruler in the kingdom.