The hex color #1d436d is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E2BC92. The grayscale version is
#444444. A 20% lighter version of the original color is
#5076A0, and Hex
#00103A is the 20% darker color. If the color is saturated by 10%, you get
#194371. If the color is desaturated by 10%, the color
#214369 is obtained.