blue, green and white
The first letter "e" and the last letter "o" are both of the color blue. The middle letter "c" is of the color green. The center of the last letter, which is "o", contains a map in the color white, that includes all but the Western part of Continental Untied States and that extends South to the middle of South America. There is a wave extending across the sea in the middle of the last letter "o" with the seas below the wave being colored dark blue and with the sea above the wave being colored light blue.