I paid for a color to be added to mine and didn't get it to show. They did add the color, and it looked great when pouring. But the temperature was to be very cold that night and they put heated tarps on it. This was to prevent it from drying and freezing to quickly. What happened was that the heated tarps drawed all the calcium in the concrete to the top. It is very white now. No power washing or scrubbing has helped. We did try a small area of diluted Muratic acid on it to remove the calcium. It worked too good. The area has a peachy color now. The PB refunded my concrete money.

Time has helped somewhat. There are a few places in the high traffic areas that the color is starting to show better.

Yours looks very similiar to what mine does on most of the decking. Did they goof and add some color?