The hex color #3d2d2d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C2D2D2. The grayscale version is
#323232. A 20% lighter version of the original color is
#706060, and Hex
#0A0000 is the 20% darker color. If the color is saturated by 10%, you get
#3E2C2C. If the color is desaturated by 10%, the color
#3C2E2E is obtained.