The hex color #596bd0 is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A6942F. The grayscale version is
#878787. A 20% lighter version of the original color is
#8C9EFF, and Hex
#26389D is the 20% darker color. If the color is saturated by 10%, you get
#5468D7. If the color is desaturated by 10%, the color
#5E6EC9 is obtained.