The hex color #2e291d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D1D6E2. The grayscale version is
#272727. A 20% lighter version of the original color is
#615C50, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#2F291C. If the color is desaturated by 10%, the color
#2D291E is obtained.