1911 red/white Rutgers University
1910 black/orange Princeton University
Some states had many years of 'traditional' colors, such as Kentucky (blue/white), West Virginia (blue/yellow), Wyoming (brown/yellow) that happen to represent the main University of the state (or vice-versa).New Jersey:
1964 white/red Univ. of Alabama
1965 orange/blue Auburn Univ.
1968 white/red Univ. of Alabama (coincidence?)
1928 yellow/blue Univ. of California (60th Anniversary)
1939 yellow/blue World's Fair
blue & yellow are traditional state colors; all Univ. of California branches have some combination of blue & yellow -Jeff Minard
1964 blue/orange Univ. of Florida
1965 gold/red Florida State Univ.
1982 red,black/white (non-pass only) Univ. of Georgia (1980 Football Championship)
1952 blue/orange Univ. of Illinois (1951 Football Championship)
1955 orange/blue Univ. of Illinois
1956 green/lt.grey Illinois Wesleyan Univ.
1957 white/red Illinois State Univ.
1958 purple/white Northwestern Univ.
1959 white/brown Quincy College
1960 gold/blue Augustana College; Wheaton College
1961 white/red North Central College
1964 white/purple Northwestern Univ.
1963 yellow/green John Deere Company (125th Anniversary)
1964 white/purple McKendee College; Rockford College
1965 green/white in honor of Secretary of State Charles Carpentier, who died in office the previous year.
1969 blue/orange Univ. of Illinois
1975 black/yellow Caterpillar Tractor Co.
1936 white/maroon Indiana Univ.
1937 yellow/black Purdue Univ.
1938 maroon/white Indiana Univ.
1939 blue/yellow Notre Dame Univ.
1941 white/blue Butler Univ.
1942 blue/yellow Notre Dame Univ.
1946 yellow/black Purdue Univ.
1947 blue/yellow Notre Dame Univ.
1948 white/blue Butler Univ.
1949 white/red Indiana Univ.
1950 yellow/black Purdue Univ.
1954 white/maroon Indiana Univ.
1956-1959 alternating blue/yellow each year Notre Dame Univ.
1960 white/blue Butler Univ.
1961 white/maroon Indiana Univ.
1962 yellow/black Purdue Univ.
1963 yellow/blue Notre Dame Univ.
1964 white/maroon Indiana Univ.
1953-2002 all variants of blue & white
1935 yellow/purple Louisiana State Univ.
1936 lt.blue/olivegreen Tulane Univ.
1957 yellow/purple Louisiana State Univ.
1960 yellow/purple Louisiana State Univ. (University Centennial)
1954 yellow/blue Univ. of Michigan
1955 white/green Michigan State Univ.
1965 yellow/blue Univ. of Michigan
1967 yellow/blue Univ. of Michigan (University Sesquicentennial)
1970 white/light gold Oakland Univ.
1932 yellow/maroon Univ. of Minnesota
1935 yellow/maroon Univ. of Minnesota
1955 yellow/maroon Univ. of Minnesota
1930 red/blue University of Mississippi
1953 white/maroon Mississippi State University
1953 copper/green Kennecott Copper Corp., Nevada's largest employer
blue and gold are official state colors (State Flag) and traditionally used on plates, though usually interpreted as yellow or orange
1951 red/white North Carolina State Univ.
1952 white/red North Carolina State Univ.
The governor at the time, W. Kerr Scott (D) from Jan 6, 1949 – Jan 8, 1953 was a graduate from NCSU and wanted those two years to be his alma mater’s colors. -Kenny O'Dell
1959 red/white Miami Univ. (50th Anniversary)
1960 blue/gold Kent State Univ. (50th Anniversary)
1970 scarlet/grey Ohio State Univ. (100th Anniversary)
1956 yellow/blue State Flag colors - traditional
1951 white/orange Univ. of Tennessee (1950 National Championship)
1954 yellow/black Vanderbilt Univ. (coincidence?)
1936 orange/blue Univ. of Virginia
1953 orange/blue Univ. of Virginia
1939 gold/green Golden Jubilee (50th Anniversary of statehood)
green is the State Flag primary color, used on many years of plates 1921-1925
1957 yellow/blue West Virginia Univ.
1963-1971 base: alternating yellow/blue & blue/yellow West Virginia Univ.
1937 yellow/brown Univ. of Wyoming
1948 brown/yellow Univ. of Wyoming
1968 yellow/brown Univ. of Wyoming
1972 brown/yellow Univ. of Wyoming
1974 yellow/brown Univ. of Wyoming
1978 base brown,yellow/white Univ. of Wyoming
1983 base brown/yellow Univ. of Wyoming