The hex color #1d3ad7 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#E2C528. The grayscale version is
#656565. A 20% lighter version of the original color is
#506DFF, and Hex
#0007A4 is the 20% darker color. If the color is saturated by 10%, you get
#1636E2. If the color is desaturated by 10%, the color
#243ECC is obtained.