Detailed historical information about the maroon and gray school colors of the Philadelphia College of Osteopathy is not available at this time, except to say that the college has traditionally used a light shade of gray.
The Philadelphia College of Osteopathic Medicine does not appear in early IBAC lists from 1927 or 1948, so the IBAC may not have assigned the college a hood lining until the late 1940s or 1950s. A list compiled by Kevin Sheard in Academic Heraldry in America (1962) described the college’s hood lining as maroon with a silver gray chevron, which was also how it was described in IBAC lists from 1969 and 1972. “Silver gray” was how the IBAC described a satin lining fabric in a light shade of gray, which was used for institutions having either light gray or silver as a school color.