The hex color #173dcc is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#E8C233. The grayscale version is
#606060. A 20% lighter version of the original color is
#4A70FF, and Hex
#000A99 is the 20% darker color. If the color is saturated by 10%, you get
#103AD7. If the color is desaturated by 10%, the color
#1E41C1 is obtained.