Provided are SLC45A2 peptides that bind to MHC I (HLA-A2) on melanoma cells or other antigen-presenting cells and are recognized by T-cell receptors on T cells. The SLC45 A2 peptides may be therapeutically used to treat a cancer, such as a cutaneous melanoma, uveal melanoma, a mucosal melanoma, or a metastatic melanoma. Methods for expanding a population of T cells that target SLC45A2 are also provided.