The hex color #3C2D3B is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C3D2C4. The grayscale version is
#373737. A 20% lighter version of the original color is
#6F606E, and Hex
#090008 is the 20% darker color. If the color is saturated by 10%, you get
#3D2C3B. If the color is desaturated by 10%, the color
#3B2E3B is obtained.