[name]Ocean[/name] is totally usuable for a boy, or [name]Oceana[/name] for a girl.
In terms of sibsets though, [name]Atlas[/name], [name]Oscar[/name] and [name]Leon[/name] works better. To use both [name]Atlas[/name] and [name]Ocean[/name] I think your third would need to be something a little quirkier, like [name]Roman[/name], [name]Magnus[/name], [name]Conrad[/name] or Lorand.
[name]Oceane[/name] is on my list for [name]Baby[/name] if it is a girl, I think it’s stunning. I wouldn’t use [name]Ocean[/name] for a boy for this reason, but it’s absolutely useable!
[name]Atlas[/name] and [name]Ocean[/name] would be awesome for siblings [they both are on my list as well]. [name]Ocean[/name] has been a favorite of mine for a boy for long time.
I used to know a girl named [name]Ocean[/name]. She was pretty eclectic (in a cool way) and outgoing so it worked really well on her. Since she’s the only [name]Ocean[/name] I never met so I can’t see it on a boy, sorry. I don’t like [name]Oceane[/name] because it looks like someone who doesn’t speak French was trying to guess the French word for ocean, and got it wrong.
[name]Ocean[/name] has more depth to me than [name]Oscar[/name], but I love [name]Leon[/name] and I think [name]Leon[/name] would feel odd. [name]Atlas[/name], [name]Ocean[/name] and…[name]Leon[/name] (pronounced [name]Lay[/name]-own). Hm…toughie!