The hex color #2e3b1f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D1C4E0. The grayscale version is
#2D2D2D. A 20% lighter version of the original color is
#616E52, and Hex
#000800 is the 20% darker color. If the color is saturated by 10%, you get
#2E3C1E. If the color is desaturated by 10%, the color
#2E3A20 is obtained.