John Rawls famously claims that ‘justice is the first virtue of social institutions’. On one of its readings, this remark seems to suggest that social institutions are essential for obligations of justice to arise. The spirit of this interpretation has recently sparked a new debate about the grounds of justice. What are the conditions that generate principles of distributive justice? I am interested in a specific version of this question. What conditions generate egalitarian principles of distributive justice and give rise to equality as a demand of justice? My paper focuses on relationalist answers to this question. Advocates of relationalism assume that ‘principles of distributive justice have a relational basis’, in the sense that ‘pract...