Although the polyester fibers used in Sunbrella are quite stabile ...
the lighter the color the FASTER the degradation by UV.
The darker the color the longer the life in UV exposure (including
sails made of polyester dacron, etc.).

As regards 'thermal capacity' .... polyester doesnt have much 'heat
capacity' nor mass; so, it really doesnt matter what color your choose
as the amount/quantity of heat 'stored' in the Sunbrella (to
re-radiate/emit through the 'back side') isnt going to be very much
different.

I find darker colors are 'easier' on the eyes ... thats why baseball
caps have a dark green or black 'liner' under the visor.



In article ,
wrote:

I am about to finalized the colors for my dodger and bimini.
This time, we are going for a lighter shade like Toast or Linen.
I wonder if anyone has any feedback as to what would be the best color for
the hot and temperate climate.
TIA