The hex color #1b044f is a dark color. The web-safe version is Hex
#330066. A complementary color is
#E4FBB0. The grayscale version is
#252525. A 20% lighter version of the original color is
#4E3782, and Hex
#00001C is the 20% darker color. If the color is saturated by 10%, you get
#1A0153. If the color is desaturated by 10%, the color
#1C074B is obtained.