It is associated with joy, sunshine, and tropics.  Orange represents enthusiasm, fascination, happiness, creativity, determination, attraction, success, encouragement, and stimulation.  To the human eyes, orange is seen as a very hot color, so it gives the sensation of heat.
West Virginia, Ohio, Illinois, and Indiana form the northern border  of Kentucky, along the Ohio River.
The Commonwealth of Kentucky - US State . Kentucky is one of the border states of the S central United States. Kentucky is bordered by West Virginia and Virginia (E); Tennessee (S); the Mississippi River, across which lies Missouri (SW); and Illinois, Indiana, and Ohio, all across the Ohio River. (W, N).