Charcoal gray v heather gray

[Dakota]

Softball generally requires heather gray or navy pants. Baseball seems to be moving toward charcoal gray. My gripe about heather gray is how rapidly it fades to a really crappy brownish look.

Does charcoal gray hold up longer? What I mean is, how long will charcoal gray pants still look like you are wearing the same color as your partner when his are new, and is this longer than if you are both wearing heather grays?