PEYA SAKANO
Umbre
Without wanting to steal the wind from your sails, wasn't this basically the plot to Divergence? The color distribution with personality types seems to match exactly. If you're inspired by something you may not want to borrow so heavily from it.
Actually, this story was a work in progress long before I even heard of or read Divergent. I'm only just now being brave (stupid) enough to share it publicly. I think I might just srcap it.
sweatdrop
I realize the topic is closed, but please allow me to elaborate.
First I apologize for the brusque manner in which I approached the initial description. The focus of your story seemed to be more-so on the world building so far rather than on the actual characters thus far. So that was the thing that drew my attention.If someone were to pick the book up off the shelf with that description, that is the idea that they would have.
As far as your premise goes, it's a fairly common trope as its based back in the 4 humors ( Phlem, Black Bile, Yellow Bile, and Blood). Phlematic, bilious, choleric, and sanguine personalities. Even the Teenage Ninja Turtles, Avatar, and Harry Potter use this concept. So it's a solid starting point, but you may not want to be so heavy handed with how it is approached or at least described unless you don't mind having your work compared to them.
So I suppose what you may want to share with us without too much detail are where you're stuck at with it if you're having trouble going past the world building stage or if you're maybe having trouble layering up the plot bunnies.
Even if you scrap this idea, it doesn't mean that there weren't seeds worth saving to sow into another story so that it may grow organically.