With the growth of mass media, professional baseball teams have strived to keep up team`s tradition and individuality and build a distinctive image through sports marketing using visual identity. Among others, a baseball uniform is used as a sports marketing tool more than an uniform. Uniform color acts as a distinctive element in team`s uniform design and is effective to raise attention, manifest a positive image to spectators, and increase trust and affinity. This study aims to compare and analyze color characteristics and images of professional baseball uniforms in America, Japan, and Korea as visual identity. For this, literature review was made on the history of baseball, uniforms, sports marketing, and visual identity, and then color characteristics and images were analyzed on professional baseball away uniforms in Korea, America, and Japan collected in Internet and official web sites. The results are as follows. First, for color characteristics of professional baseball uniforms, the most frequently used color was R(V) color in Korea, ltGy color in America, and Bk color in Japan. Second, for color images of professional baseball uniforms, the most frequently used image was a casual image in Korea, a dandy image in America, and a modern image in Japan.