Cerulean

A member of the fabaceae family native to the inner sea, this plant is processed into a blue-green dye. This dye is one of the few vibrant colors available to just about anyone with a few klara to their name. Fashion around it tends to go in loops with the rich adopting it, then the poor adopting it, then the rich dropping it and the poor dropping it, ad infinitum. Sashes and belts dyed with the material seems to be perennial.