The hex color #0f36e7 is a dark color. The web-safe version is Hex
#0033FF. A complementary color is
#F0C918. The grayscale version is
#646464. A 20% lighter version of the original color is
#4269FF, and Hex
#0003B4 is the 20% darker color. If the color is saturated by 10%, you get
#0731F4. If the color is desaturated by 10%, the color
#183BDA is obtained.