blue

Exodus 28:28, 31
The rings of the breastpiece shall be tied to the rings of the ephod with a cord of blue yarn, so that the breastpiece is above the waistband of the ephod and does not swing out from the ephod. . . .

Numbers 15:38
"Speak to the Israelites and tell them that throughout the generations to come they are to make for themselves tassels for the corners of their garments, with a blue cord on each tassel.

the mitre it

Exodus 28:4
These are the garments that they shall make: a breastpiece, an ephod, a robe, a woven tunic, a turban, and a sash. They are to make these holy garments for your brother Aaron and his sons, so that they may serve Me as priests.

Exodus 29:6
Put the turban on his head and attach the holy diadem to the turban.

Exodus 39:30, 31
They also made the plate of the holy crown of pure gold, and they engraved on it, like an inscription on a seal: HOLY TO THE LORD. . . .

Leviticus 8:9
Moses also put the turban on Aaron's head and set the gold plate, the holy diadem, on the front of the turban, as the LORD had commanded him.

Zechariah 3:5
Then I said, "Let them put a clean turban on his head." So a clean turban was placed on his head, and they clothed him, as the Angel of the LORD stood by.