The color(s) Blue, Gray, White, Black, Red is/are claimed as a feature of the mark.
The mark consists of a stylized rectangular design containing a graph background with a line going diagonally across the graph. The rectangular design contains the words Prescription Diet in all caps in the upper portion and Diet in the smaller caps in the lower portion. Below the word prescription and above the stylized rectangular design is a square device with the word Hill's in initial caps below two small shaded rectangular devices separated by a red and blue stylized arch. .