The hex color #2a3e2f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D5C1D0. The grayscale version is
#323232. A 20% lighter version of the original color is
#5D7162, and Hex
#000B00 is the 20% darker color. If the color is saturated by 10%, you get
#293F2F. If the color is desaturated by 10%, the color
#2B3D2F is obtained.