Edad Oscura by Pierce Brown

Dark Age

Set in a dystopian future where society is divided into color-coded castes, the story follows the relentless struggle of Darrow, a Red, who has risen through the ranks to challenge the oppressive Gold rulers. As the Solar Republic teeters on the brink of chaos, Darrow must navigate treacherous political landscapes, face betrayal, and confront his own inner demons. Amidst the backdrop of interstellar warfare and shifting alliances, he strives to unite the fractured factions and ignite a revolution that could reshape the destiny of humanity.