Molasses or other things can give bread a brown color. Read the ingredient list.
The word "whole" should always appear before the name of the grain, such as whole wheat, whole oats, or whole rye. And it should be the first thing on the ingredient list.
Don't be misled by labels that say "multi-grain," "stone-ground," "100% wheat," "cracked wheat," or "seven-grain." These usually aren't whole grain.