The hex color #05406d is a dark color. The web-safe version is Hex
#003366. A complementary color is
#FABF92. The grayscale version is
#3B3B3B. A 20% lighter version of the original color is
#3873A0, and Hex
#000D3A is the 20% darker color. If the color is saturated by 10%, you get
#004072. If the color is desaturated by 10%, the color
#0A4068 is obtained.