The hex color #596ab5 is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A6954A. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#8C9DE8, and Hex
#263782 is the 20% darker color. If the color is saturated by 10%, you get
#5568BB. If the color is desaturated by 10%, the color
#5D6CAF is obtained.