What color are the sire and dam? Foal can only be gray of one of them is gray and the mare does not look gray, and "golden" in the sire's name suggests he isn't either! One of them must be black based and carrying agouti and someone must have cream for you to think the foal would be buckskin or bay. And if you thought silver, one of them would have to be carrying (and possibly hiding) silver. Is the mare a silver bay??? And the sire palomino? Then foal could be silver black or black with cream - or just black.