The hex color #582d9c is a dark color. The web-safe version is Hex
#663399. A complementary color is
#A7D263. The grayscale version is
#606060. A 20% lighter version of the original color is
#8B60CF, and Hex
#250069 is the 20% darker color. If the color is saturated by 10%, you get
#5728A2. If the color is desaturated by 10%, the color
#593296 is obtained.