The hex color #005FC3 is a dark color. The web-safe version is Hex
#0066CC. A complementary color is
#FFA03C. The grayscale version is
#616161. A 20% lighter version of the original color is
#3392F6, and Hex
#002C90 is the 20% darker color. If the color is saturated by 10%, you get
#005FCD. If the color is desaturated by 10%, the color
#0A5FB9 is obtained.