South African white supremacy has been shaped by over 400 years of settler colonialism and white minority apartheid rule to craft a pervasive and entrenched legacy of privilege and oppression in the post-apartheid context. This paper explores the constructions of white supremacy, specifically its role in shaping the perceptions of first-generation mixed-race identity in South Africa, through semi-structured, in-depth interviews. Through a critical race theory and an intersectional lens, this paper unpacks the personal, political, and social impact of white supremacist structures on the identity construction of first-generation mixed-race people in post-apartheid South Africa; specifically, societal- and self-perceptions of their identity within power structures with which they interact. Moreover, this paper aims to understand how first-generation mixed-race people understand their connections to white privilege. Ultimately this paper argues that although first-generation mixed-race people experience relative privilege, their access to white privilege and acceptance within structures of whiteness is always conditional.