The hex color #2a3a1a is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D5C5E5. The grayscale version is
#2A2A2A. A 20% lighter version of the original color is
#5D6D4D, and Hex
#000700 is the 20% darker color. If the color is saturated by 10%, you get
#2A3C18. If the color is desaturated by 10%, the color
#2A381C is obtained.