Use of green and white colored GI sheets for roofing and side cladding.

Thanks for the answer. I agree that there are other combinations like blue and white etc, but is there any specific reason for mostly using green and blue along with white?

Green colored roofs reflect heat and are appealing to the eye for being complacent with nature’s green which is missing in urban life.white on walls appeals to building feature of being a symbol of inhabitation. Other colors being used in hills are Red and Blue as well. Tatas have also recently introduced silver which is another pretty and innovative color choice.