Exodus 28:6

28:6 “They are to make the ephod of gold, blue, purple, scarlet, and fine twisted linen, the work of an artistic designer.

Exodus 28:15

28:15 “You are to make a breastpiece for use in making decisions, the work of an artistic designer; you are to make it in the same fashion as the ephod; you are to make it of gold, blue, purple, scarlet, and fine twisted linen.