The hex color #2b2734 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D4D8CB. The grayscale version is
#2D2D2D. A 20% lighter version of the original color is
#5E5A67, and Hex
#000001 is the 20% darker color. If the color is saturated by 10%, you get
#2B2635. If the color is desaturated by 10%, the color
#2B2833 is obtained.