The hex color #1a43a2 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#E5BC5D. The grayscale version is
#555555. A 20% lighter version of the original color is
#4D76D5, and Hex
#00106F is the 20% darker color. If the color is saturated by 10%, you get
#1441AA. If the color is desaturated by 10%, the color
#20459A is obtained.