Conception through donor insemination is an attractive option for many couples and single women in the USA, being a relatively simple and inexpensive way of having a baby by a biological birth. Sperm banks provide online catalogues in which sperm donors can be selected according to their physical and social characteristics. One sperm bank's catalogue was analysed based on the pregnancy of selected donors. Three hypotheses were tested related to colourism, biracial stratification and tri-racialism. Specifically, the selection of donors did not reflect: (1) any general preference for a lighter skin tone; (2) a black-white polarity; or (3) any trend towards tri-racialism. Donors who could be identified as Jewish or Muslim were more likely to be selected. Donors whose major was law were less likely to be selected.