The hex color #3d1f3e is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C2E0C1. The grayscale version is
#333333. A 20% lighter version of the original color is
#705271, and Hex
#0A000B is the 20% darker color. If the color is saturated by 10%, you get
#3E1D3F. If the color is desaturated by 10%, the color
#3C213D is obtained.