No one--whether 60 feet or 6 feet or 6 inches away will EVER mistake these tights for denim.  At it's best, it's cotton tights trying to look like denim...and not doing a very good job at it.  The fit is a bit odd, the seams are off, and these tights are not tight.  And by that, I mean they don't really hold anything in or smooth anything out...the fabric just kinda lays there.  As a matter of fact, these leggings actually make my thighs look bigger than they are.  One star for being comfortable, and another for the acceptable quality.  Not bad when you pair it with knee-high boots and tunics, so only a 6 inches of the tights show.  But for anything else...nah!