Why are they called Indigo Children?

Why are they called Indigo Children?

The name refers to the colour indigo, and the phenomenon of the Indigo Children was first
publicly announced  in 1982, in a book “Understanding your Life through Color”, by Nancy Ann Tappe.

Frozen-strawberry-pie.
Apparently, all humans can be categorized into groups (on the spiritual level) and each of these groups has a characteristic colour in their aura. It can be tested intuitively, eg. with a pendulum.

Around the beginning of the 1970's, a new colour began appearing in children being born, the colour indigo. At first, these “Indigo Children”, as they became called, because of this indigo
majority of births. 

Today it has reached the point where almost all births are of “Indigos”, with the other colours being a tiny minority of new-born babies.Cool. Why are they called Indigo Children?people-of-indigo-ray

Why are they called Indigo Children? Video :