The hex color #0f39e4 is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#F0C61B. The grayscale version is
#646464. A 20% lighter version of the original color is
#426CFF, and Hex
#0006B1 is the 20% darker color. If the color is saturated by 10%, you get
#0735F1. If the color is desaturated by 10%, the color
#183DD7 is obtained.