This article examines how Kant’s conceptualizations of natural history and teleological judgement shape his understanding of human difference and race. I argue that the teleological framework encasing Kant’s racial theory implies constraints on the capacity of non-whites to make moral progress. While commentators tend to approach Kant’s racial theory in relation to his political theory, his late-life cosmopolitanism, and his treatments (or non-treatments) of colonialism, empire and slavery, the problem I focus on here is that race is itself only intelligible in relation to a teleological natural history limiting certain races’ capacities to engage in humanity’s moral vocation.