There’s plenty teams that use both Carolina blue and navy blue
Sometimes it’s obvious aka Titans, Villanova, grizzlies, other times it’s on alternate jerseys or retro jerseys like Royals, mariners, braves, Lakers, Marquette (with yellow), plus all the soccer or hockey crap Im unfamiliar with....
But besides that, the obsidian color is pretty dark, almost black depending on lighting. All I mean is it’s muted, the Carolina blue is what pops and stands out. Either way it’s a great look and I’m pretty sure general public (sneaker heads or not) agree it’s clean af