In social psychology, the background assumption of most of the research on cultural diversity ideologies is that multiculturalism is not in the interest of majority group members while colourblindness is. However, this assumption may not hold in a context in which multiculturalism benefits the majority group. Two studies investigated the association between multiculturalism and in-group bias amongst Hindu majority members in Mauritius. In Study 1, survey data showed that those who highly identified as Hindus reported less bias when they endorsed multiculturalism. Using an experimental design, Study 2 demonstrated that higher compared to lower majority group identifiers showed stronger in-group bias in colourblindness, polyculturalism, and control conditions, but not in a multiculturalism condition. In contrast to the existing research conducted in Western countries, these findings demonstrate that multiculturalism rather than colourblindness can be reassuring for high majority group identifiers. It is concluded that the meaning and impact of cultural diversity ideologies for intergroup relations depend on the national context.