The hex color #2b2928 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D4D6D7. The grayscale version is
#292929. A 20% lighter version of the original color is
#5E5C5B, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#2B2928. If the color is desaturated by 10%, the color
#2B2928 is obtained.