The hex color #3d0d3e is a dark color. The web-safe version is Hex
#330033. A complementary color is
#C2F2C1. The grayscale version is
#2D2D2D. A 20% lighter version of the original color is
#704071, and Hex
#0A000B is the 20% darker color. If the color is saturated by 10%, you get
#3F0A40. If the color is desaturated by 10%, the color
#3B103C is obtained.