The hex color #2d3f2d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2C0D2. The grayscale version is
#333333. A 20% lighter version of the original color is
#607260, and Hex
#000C00 is the 20% darker color. If the color is saturated by 10%, you get
#2C402C. If the color is desaturated by 10%, the color
#2E3E2E is obtained.