The hex color #594d5c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#A6B2A3. The grayscale version is
#565656. A 20% lighter version of the original color is
#8C808F, and Hex
#261A29 is the 20% darker color. If the color is saturated by 10%, you get
#594C5D. If the color is desaturated by 10%, the color
#594E5B is obtained.