The hex color #3e030d is a dark color. The web-safe version is Hex
#330000. A complementary color is
#C1FCF2. The grayscale version is
#1A1A1A. A 20% lighter version of the original color is
#713640, and Hex
#0B0000 is the 20% darker color. If the color is saturated by 10%, you get
#42010C. If the color is desaturated by 10%, the color
#3A050E is obtained.