The hex color #6d519c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#92AE63. The grayscale version is
#737373. A 20% lighter version of the original color is
#A084CF, and Hex
#3A1E69 is the 20% darker color. If the color is saturated by 10%, you get
#6C4EA0. If the color is desaturated by 10%, the color
#6E5498 is obtained.