The hex color #2c3a3c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D3C5C3. The grayscale version is
#363636. A 20% lighter version of the original color is
#5F6D6F, and Hex
#000709 is the 20% darker color. If the color is saturated by 10%, you get
#2B3A3D. If the color is desaturated by 10%, the color
#2D3A3B is obtained.