The hex color #685b8c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#97A473. The grayscale version is
#707070. A 20% lighter version of the original color is
#9B8EBF, and Hex
#352859 is the 20% darker color. If the color is saturated by 10%, you get
#67598F. If the color is desaturated by 10%, the color
#695D89 is obtained.