It's the closest major city. The actual halfway point is Rocky Hill, CT.
The halfway point between Maryville, TN, and Cleveland, OH, is approximately near the area of Lexington, KY. This location is roughly equidistant from both cities and offers convenient access to major highways. It's a good spot for a break during a long drive, with various amenities and dining options.
Benezette, Pennsylvania is the halfway point between Long Island, New York and Toledo, Ohio. There is approximately 604 miles between New York and Ohio.
Nashville
philly
Rock Springs, WY
The halfway point between Sydney, Australia and Los Angeles, California is London, Kiribati. The closest major city that is roughly halfway is Honolulu, Hawaii.
The 3 major cities in Connecticut besides Hartford are Norwalk, Stamford and Waterbury.
Jewell Village, Indiana is the halfway point from Lansing, MI to Columbia, TN. The closest major city that is roughly halfway is Indianapolis, IN.
The colors in your question are halfway between the major colors. For example, red-orange is halfway between pure red and pure orange.
The halfway point would be Mora New Mexico. The closest major city to the halfway point is Albuquerque New Mexico.
There are no major cities between Akron and Parma via I77 S/N. The halfway point would be 20 miles, as the total trip is 40 miles.