The hex color #68309c is a dark color. The web-safe version is Hex
#663399. A complementary color is
#97CF63. The grayscale version is
#676767. A 20% lighter version of the original color is
#9B63CF, and Hex
#350069 is the 20% darker color. If the color is saturated by 10%, you get
#682BA1. If the color is desaturated by 10%, the color
#683597 is obtained.