Detailed historical information about the green, gold, and white colors of Walden University is not available at this time.
Walden University apparently designed its own academic hood lining in the 1970s without the help of the Intercollegiate Bureau of Academic Costume (IBAC). Documentation of this hood lining pattern does not appear in any published source and is only known from existing examples, like the Walden University PhD hood shown to the left.