The hex color #596db2 is a dark color. The web-safe version is Hex
#666699. A complementary color is
#A6924D. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#8CA0E5, and Hex
#263A7F is the 20% darker color. If the color is saturated by 10%, you get
#556BB7. If the color is desaturated by 10%, the color
#5D6FAD is obtained.