The hex color #0f18c0 is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#F0E73F. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#424BF3, and Hex
#00008D is the 20% darker color. If the color is saturated by 10%, you get
#0913CC. If the color is desaturated by 10%, the color
#151DB5 is obtained.