The hex color #1a367b is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E5C984. The grayscale version is
#444444. A 20% lighter version of the original color is
#4D69AE, and Hex
#000348 is the 20% darker color. If the color is saturated by 10%, you get
#163581. If the color is desaturated by 10%, the color
#1E3775 is obtained.