Where does Christ say crimson and gold robes are "proper" attire for anyone?
"And when thou art spoiled, what wilt thou do? Though thou clothest thyself with crimson, though thou deckest thee with ornaments of gold, though thou rentest thy face with painting, in vain shalt thou make thyself fair; thy lovers will despise thee, they will seek thy life." -- Jeremiah 4:30
Christ does not indicate any particular color, but He insists on the "nuptual" character of the garment proper for the feast of the Eucharist in the parable of the guests at the wedding.