The hex color #1f3ba4 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#E0C45B. The grayscale version is
#555555. A 20% lighter version of the original color is
#526ED7, and Hex
#000871 is the 20% darker color. If the color is saturated by 10%, you get
#1A38AC. If the color is desaturated by 10%, the color
#243E9C is obtained.