The hex color #0f5ca5 is a dark color. The web-safe version is Hex
#006699. A complementary color is
#F0A35A. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#428FD8, and Hex
#002972 is the 20% darker color. If the color is saturated by 10%, you get
#075CAC. If the color is desaturated by 10%, the color
#175C9E is obtained.