The hex color #3e1e2c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C1E1D3. The grayscale version is
#2D2D2D. A 20% lighter version of the original color is
#71515F, and Hex
#0B0000 is the 20% darker color. If the color is saturated by 10%, you get
#401C2C. If the color is desaturated by 10%, the color
#3C202C is obtained.