Exodus 28:5-6, 15, 33

And they shall take gold, and blue, and purple, and scarlet, and fine linen. And they shall make the ephod of gold, of blue, and of purple, of scarlet, and fine twined linen, with cunning work.

And thou shalt make the breastplate of judgment with cunning work; after the work of the ephod thou shalt make it; of gold, of blue, and of purple, and of scarlet, and of fine twined linen, shalt thou make it.

And beneath upon the hem of it thou shalt make pomegranates of blue, and of purple, and of scarlet, round about the hem thereof; and bells of gold between them round about