The hex color #1f286f is a dark color. The web-safe version is Hex
#333366. A complementary color is
#E0D790. The grayscale version is
#3D3D3D. A 20% lighter version of the original color is
#525BA2, and Hex
#00003C is the 20% darker color. If the color is saturated by 10%, you get
#1C2674. If the color is desaturated by 10%, the color
#222A6A is obtained.