The hex color #263d2a is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D9C2D5. The grayscale version is
#2F2F2F. A 20% lighter version of the original color is
#59705D, and Hex
#000A00 is the 20% darker color. If the color is saturated by 10%, you get
#253E2A. If the color is desaturated by 10%, the color
#273C2B is obtained.