Childhood - ( Balya Awashtha)Green signifies cultivation of mind and body. Baically it is an important phase of life & the shortest one.
Adulthood - ( Yuva Awashtha )Orange signifies symbol of energy and discipline with aggression. Basically It plays a role of Moderator.
Middle Age - ( Gruha Awashtha )Pink signifies a stage of marriage life with enjoying family values in it's karma. Basically it covers the process of hardwork with peace & prosperity.
Seniour Age - ( Vrudha Awashtha )Blue signifies saturation in life with all karmas. Basically it is a last stage of life in a universe.