The hex color #3e001d is a dark color. The web-safe version is Hex
#330033. A complementary color is
#C1FFE2. The grayscale version is
#1E1E1E. A 20% lighter version of the original color is
#713350, and Hex
#0B0000 is the 20% darker color. If the color is saturated by 10%, you get
#41001D. If the color is desaturated by 10%, the color
#3B031D is obtained.