The hex color #1d3366 is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E2CC99. The grayscale version is
#3D3D3D. A 20% lighter version of the original color is
#506699, and Hex
#000033 is the 20% darker color. If the color is saturated by 10%, you get
#1A326A. If the color is desaturated by 10%, the color
#203462 is obtained.