The hex color #656cb0 is a dark color. The web-safe version is Hex
#666699. A complementary color is
#9A934F. The grayscale version is
#808080. A 20% lighter version of the original color is
#989FE3, and Hex
#32397D is the 20% darker color. If the color is saturated by 10%, you get
#626AB5. If the color is desaturated by 10%, the color
#686EAB is obtained.