The hex color #2d3a3c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2C5C3. The grayscale version is
#363636. A 20% lighter version of the original color is
#606D6F, and Hex
#000709 is the 20% darker color. If the color is saturated by 10%, you get
#2C3A3D. If the color is desaturated by 10%, the color
#2E3A3B is obtained.