Our deck project was completed a couple weeks ago. We went with Timbertech, and so far there hasn't been a time when it's gotten too hot for bare feet (I do have hobbit feet). Between the canopy and the crepe myrtle, the upper deck is shaded much of the time, but the landing is in full sun. I have some black treads put down on the stairs (less slippery for our dog), and they got super hot, but the uncovered part of the step was fine.
We got the material in "Shoreline," a weathered-wood color that's mostly med-light grey with a bit of brown streaking.