“The tree which moves some to tears of joy is in the eyes of others only a green thing that stands in the way. Some see nature all ridicule and deformity… and some scarce see nature at all. But to the eyes of the man of imagination, nature is imagination itself.” ― William Blake
Hindu mythology associates peacocks with the god Lakshmi. The feathers thus represent his qualities: kindness, patience and good fortune as the color Green.
Contrast is the difference in luminance and/or color that makes an object (or its representation in an image or display) distinguishable.
The natural Greens, from forest to lime, are seen as soothing and refreshing, with a natural balance of cool and warm (blue and yellow) feelings. Green is considered the color of Peace and Ecology.