Exodus 39:2-5

2And he made the ephod of gold, blue, and purple, and scarlet, and twined byssus.

3And they beat the gold into thin plates, and cut it [into] wires, to work it artistically into the blue, and into the purple, and into the scarlet, and into the byssus.

4They made shoulder-pieces for it, joining it: at its two ends was it joined together.

5And the girdle of his ephod, which was on it, was of the same, according to its work, of gold, blue, and purple, and scarlet, and twined byssus; as Jehovah had commanded Moses.