The hex color #59518e is a dark color. The web-safe version is Hex
#666699. A complementary color is
#A6AE71. The grayscale version is
#686868. A 20% lighter version of the original color is
#8C84C1, and Hex
#261E5B is the 20% darker color. If the color is saturated by 10%, you get
#584F92. If the color is desaturated by 10%, the color
#5B538A is obtained.