The hex color #3f271e is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C0D8E1. The grayscale version is
#2C2C2C. A 20% lighter version of the original color is
#725A51, and Hex
#0C0000 is the 20% darker color. If the color is saturated by 10%, you get
#41271D. If the color is desaturated by 10%, the color
#3D281F is obtained.