Is [name_u]Ocean[/name_u] too feminine or out there to use? I was thinking [name_u]Ocean[/name_u] [name_u]Elias[/name_u].
I find it pretty unisex, but to me it leans more towards masculine, especially with a middle name like [name_u]Elias[/name_u]. It kind of reminds me of [name_u]Orion[/name_u] and [name_m]Oisin[/name_m], both boys’ names. If you’re still not sure there’s always [name_m]Oceanus[/name_m].
I actually prefer [name_u]Ocean[/name_u] on boys even though it works for both. So definitely not too feminine in my opinion. [name_u]Ocean[/name_u] [name_u]Elias[/name_u], great combo! 
Nope, not at all. [name_u]Ocean[/name_u] [name_u]Elias[/name_u] is stunning!