The hex color #39728c is a dark color. The web-safe version is Hex
#336699. A complementary color is
#C68D73. The grayscale version is
#686868. A 20% lighter version of the original color is
#6CA5BF, and Hex
#063F59 is the 20% darker color. If the color is saturated by 10%, you get
#347390. If the color is desaturated by 10%, the color
#3E7188 is obtained.