Various national and international political associations have claimed that present-day racism towards people of African descent living in formerly colonizing European countries is caused by these countries’ colonial past and their governments’ failure to adequately address this historical legacy. However, no empirical study has yet examined the relation between social representations of colonialism (SRC) and attitudes towards Afro-descendants among majority group members. To investigate this phenomenon, we carried out two cross-sectional studies, which both confirmed that SRC are associated with attitudes towards the Congolese and with support for compensations. Study 1 (N = 407) investigated, among Belgian participants, the association of the two dimensions of SRC – Exploitation and Development – with present-day intergroup attitudes and support for compensations (material and symbolic) for colonialism. Representing the colonial past in terms of Exploitation was associated with more positive attitudes and more intentions to compensate for colonialism, whereas representing it in terms of Development had the opposite effect. Some of these effects were moderated by national identification. Study 2 (N = 203) used the same design but also included a modern racism scale. Results of Study 1 were generally replicated, and effects of SRC on modern racism were obtained: SRC in terms of Exploitation was associated with less modern racism, and SRC in terms of Development was associated with more modern racism. Results are discussed in terms of post-colonial intergroup relations.