This is something that's bugged me for years: I'll be reading a story on ESPN and notice that the first paragraph is dark gray, and the second paragraph is often black. I've even taken a screenshot and used a color dropper to confirm, and indeed, the former is #333333 and the latter is #000000. [Here's an example](http://espn.go.com/dallas/nfl/story/_/id/7004024/dallas-cowboys-tony-romo-get-ct-scan-check-lung-sources-say)

Why is this? Is this deliberate? Or is it a weird styling oversight related to any text adjacent to a floating box? And as a sub-question, is there any known user experience benefit to using dark gray text over black text?