The hex color #1d356d is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E2CA92. The grayscale version is
#404040. A 20% lighter version of the original color is
#5068A0, and Hex
#00023A is the 20% darker color. If the color is saturated by 10%, you get
#1A3472. If the color is desaturated by 10%, the color
#203668 is obtained.