The hex color #2d000d is a dark color. The web-safe version is Hex
#330000. A complementary color is
#D2FFF2. The grayscale version is
#131313. A 20% lighter version of the original color is
#603340, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#30000C. If the color is desaturated by 10%, the color
#2A020E is obtained.