Think semantically, not dogmatically. Labels can be used to describe data as well as form fields. I can’t tell you how often I’ve seen something like this:
<div id="image-info"> <span class="label">Name:</span><span>myimage.jpg</span> <span class="label">Size:</span><span>5KB</span> <span class="label">MIME Type:</span><span>image/jpg</span> </div>
The obvious red flag here is that the name of the class is also the name of a tag, but a lot of examples aren’t quite so obvious. Nonetheless, when labeling data, use the label tag to do it. I’ve never seen any indication that it’s incorrect in any way.