As previously mentioned, Christmas day and Epiphany eventually were differentiated.  The reason for this is that, although the visitation of the magi is commonly associated with the nativity of Christ, a careful reading of the Gospels reveals that this visitation occurred as late as two years after Jesus’ birth.
The observance of Epiphany takes on a significance which is distinct from Christ’s nativity.  Because the magi were wise men from the east (i.e., gentiles), Epiphany marks the time when Christ was made known to the world.  Indeed, the word “Epiphany” comes from the Greek word meaning “manifestation” or “appearance.”  Appropriately, Epiphany brings a close to the twelve-day celebration of Christmastide.
The liturgical color for Epiphany is white.  White represents the holiest of days in the life of the Church because it signifies the glory of our Lord, Jesus Christ as he is revealed to the world.  White symbolizes purity, holiness, and virtue, as well as respect and reverence.  White is used for all high Holy Days and festival days of the Church year.  It is indeed proper and fitting for us to mark the day of Epiphany with the holy color of white.