The Guilford College board of trustees probably selected crimson and gray as the school colors in 1888 when the school was chartered as a college and the school seal was designed. Formerly Guilford had been a boarding school.
Citations in the World Almanac (listed by cover date; color information is from the previous year): crimson/gray (1918-1935)
Guilford College does not appear in early IBAC lists from 1927 or 1948, so the IBAC might 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 Guilford’s hood lining as gray with two crimson chevrons, which was also how it was described in an IBAC list from 1972. The IBAC assigned Guilford a hood lining with two chevrons because Loyola Marymount University had already been assigned a hood lined gray with a single crimson chevron.
The double chevron pattern used two chevrons about 1½ inches in width placed two inches apart so that the color of the hood lining showed between them.