The hex color #1f427c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E0BD83. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#5275AF, and Hex
#000F49 is the 20% darker color. If the color is saturated by 10%, you get
#1B4181. If the color is desaturated by 10%, the color
#234377 is obtained.