The hex color #5b618c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#A49E73. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#8E94BF, and Hex
#282E59 is the 20% darker color. If the color is saturated by 10%, you get
#59608F. If the color is desaturated by 10%, the color
#5D6289 is obtained.