The hex color #0d12d0 is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#F2ED2F. The grayscale version is
#505050. A 20% lighter version of the original color is
#4045FF, and Hex
#00009D is the 20% darker color. If the color is saturated by 10%, you get
#060CDD. If the color is desaturated by 10%, the color
#1418C3 is obtained.