The hex color #302f1f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#CFD0E0. The grayscale version is
#2A2A2A. A 20% lighter version of the original color is
#636252, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#31301E. If the color is desaturated by 10%, the color
#2F2F20 is obtained.