The hex color #2d273c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2D8C3. The grayscale version is
#303030. A 20% lighter version of the original color is
#605A6F, and Hex
#000009 is the 20% darker color. If the color is saturated by 10%, you get
#2D263D. If the color is desaturated by 10%, the color
#2D283B is obtained.