San Luis Polychrome is part of the Mexico City "Common Grade" majolica category, and incorporates a wide range of variation in quality and design motifs. It is related to both Mexico City Green on Cream and to Aucilla Polychrome, and has not been reported from pre-1650 contexts.

This description of San Luis Polychrome comes from the Historical Archaeology Digital Ceramic Type Collection maintained by the Florida Museum of Natural History.

Paste is tan or cream-colored, dense, and shows little visible mineral tempering. Background enamel is thinly-applied and off-white or tan in color. Decoration is painted primarily in dark green, with the central design framed by three narrow black or brown bands. The marlie design is also usually framed by framed by one to three narrow black or brown lines. A yellow rim band outlined in black is sometimes present, and decoration is occasionally highlighted with touches of orange or yellow. Design motifs include large, stylized floral and leaf elements, dots, elongated lobes and thick, curved lines.