blue.

Genesis 41:42
Then Pharaoh removed the signet ring from his finger, put it on Joseph's finger, clothed him in garments of fine linen, and placed a gold chain around his neck.

Ezekiel 16:10
I clothed you in embroidered cloth and provided you sandals of fine leather. I wrapped you in fine linen and covered you with silk.

Revelation 19:8
She was given clothing of fine linen, bright and pure." For the fine linen she wears is the righteous acts of the saints.