The hex color #748c8c is a light color. The web-safe version is Hex
#669999. A complementary color is
#8B7373. The grayscale version is
#848484. A 20% lighter version of the original color is
#A7BFBF, and Hex
#415959 is the 20% darker color. If the color is saturated by 10%, you get
#728D8D. If the color is desaturated by 10%, the color
#768B8B is obtained.