The hex color #164b5f is a dark color. The web-safe version is Hex
#003366. A complementary color is
#E9B4A0. The grayscale version is
#404040. A 20% lighter version of the original color is
#497E92, and Hex
#00182C is the 20% darker color. If the color is saturated by 10%, you get
#124C62. If the color is desaturated by 10%, the color
#1A4A5C is obtained.