The hex color #0d56a9 is a dark color. The web-safe version is Hex
#006699. A complementary color is
#F2A956. The grayscale version is
#595959. A 20% lighter version of the original color is
#4089DC, and Hex
#002376 is the 20% darker color. If the color is saturated by 10%, you get
#0556B1. If the color is desaturated by 10%, the color
#1556A1 is obtained.