The hex color #3d1d3c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C2E2C3. The grayscale version is
#323232. A 20% lighter version of the original color is
#70506F, and Hex
#0A0009 is the 20% darker color. If the color is saturated by 10%, you get
#3E1B3D. If the color is desaturated by 10%, the color
#3C1F3B is obtained.