The hex color #0f12df is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#F0ED20. The grayscale version is
#555555. A 20% lighter version of the original color is
#4245FF, and Hex
#0000AC is the 20% darker color. If the color is saturated by 10%, you get
#080BED. If the color is desaturated by 10%, the color
#1619D1 is obtained.