The hex color #113d4e is a dark color. The web-safe version is Hex
#003366. A complementary color is
#EEC2B1. The grayscale version is
#343434. A 20% lighter version of the original color is
#447081, and Hex
#000A1B is the 20% darker color. If the color is saturated by 10%, you get
#0E3E51. If the color is desaturated by 10%, the color
#153C4B is obtained.