I explain my thoughts on blood caste here, and propose on Earth C things would be different. So here are the first gen kids of Earth C: (updated from this)
Kiddos:
Jaxy Anglaise (Jake+Roxy) (Jake Roxy, French feminine form of 'English') See her here in panel mode.
Ivy Harland (Jade+Rose) (A green plant, Harland seemed like a good Harley/Lalonde mix) Nice dark green colour
Drew Stricker (Dave+Jane) (Nancy Drew, Stricker very similarly to Strider) Pink because it's between blue and red.
Trolls:
Prasan Vankon (Karkat+Nepeta, possibly a Cano) (prasan from prasanna: "clear, bright, tranquil", Vantas Karkat Leijon) Brownblood. Gave her that name because she's a Leijon/Vantas grub, so fulfilling The First Ship.
Aapepi Lisorp (Terezi+Vriska) (aapepi from Apep: ancient Egyptian snake god of darkness and disorder, Libra Scorpio) In between cerulean and teal. Gave him that name because Terezi and Vriska are kinda like disorder.
Rupvar Inarin (Gamzee+Kanaya) (Rupvar from Apurva: variously means unprecedented, one of a kind, unique, Inarin from Inari: Japanese kami who is shown variously as male and female) Sorta cerulean. Gave them that name because who woulda thunk that Gamzee and Kanaya had a grub, and also gender fun.
Carapacians:
For the carapacians, I'm sure they would several names over their lifetime, just like WV, PM, etc etc. These are names when they would be teenagers.
SW: Swift Freewalker.
LM: Lucent (luminous, giving off light, or transparent) Montagist (person who makes montages)
RB: Recondite (esoteric, obscure) Beatsman (like a police officer)