The laboring and political class (known as wrights) all wear blue tattoos of varying design. Their tattoos denote one's job title and depth of dedication; One must change jobs every five years, but that is not to say it must be in a different field.
Executive officials are quite nearly blue from head to toe, while menial laborers merely have their hands marked.
People may leave this caste if they wish. Wrights have the most
freedoms, but they are subject to the greatest pressures also. It is
common to retire to a life of farming and religious reflection, once one
has lost the appetite for strenuous work.