Problem with Khaos: It's the world Mortal Kombat takes place in, IIRC, so it's probably copyrighted. Chaos would work just as fine.
Chronos was the Greek Titan of time, so Tempus (Latin for time, rather than Greek) to avoid mythological copyright.
Solaris is more "Sun" related, so Luces (literally "lights", the noun) could be more what you're looking for.
Colossus sounds better than Baryos, just because nobody would know what baryo means.
Umbros would work.