Purple = Advent & Lent. BLUE is an innovation.
White = Christmastide and Eastertide. GOLD is an innovation.
Green = Trinity Season
The others you cite follow the traditional liturgical colors
Thanks
Purple was the color of the Praetorian guard, the elite unit of Roman rulers. Gold, color wise, speaks for itself power wise as to ruling, who holds it and the grip it can have on man...