This work presents juridical-political implication that emerge from an analysis about violence against black women in relation to Frantz Fanon s conceptions of zone of being and zone of non being. Based on decolonial and afrodiasporic feminist thought, I analyse how dinamics of power and oppresion on brazilian society are organized in a racist-cisheteropatriarchal matrix of power, racializing the notion of gender. Once verified that the rubric violence against women is not suficient to register various processes of violence against black women, I present the concept of racial-gendered violence. In adition to naming the indissociability between race and gender, racialgendered violence explicit that racial-gendered aspects related to the subjects involved in the violent process mediate it s functioning under two distintic gramatics: as exception, in the zone of being, or as a rule, in the zone of non being. However, in the colonial matrix of power, the Law does not take account of a plurality of gramatics of violence, ending up mistifying universalizations which, in reality, deny the humanity of those situated in the zone of non being. These considerations, therefore, defy the epistemological borders of the Law to reconfigurate themselves in order to register decolonial pluriversal dimensions of violence.