The hex color #12013e is a dark color. The web-safe version is Hex
#000033. A complementary color is
#EDFEC1. The grayscale version is
#1B1B1B. A 20% lighter version of the original color is
#453471, and Hex
#00000B is the 20% darker color. If the color is saturated by 10%, you get
#110042. If the color is desaturated by 10%, the color
#13043B is obtained.