The hex color #1f3ae2 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#E0C51D. The grayscale version is
#696969. A 20% lighter version of the original color is
#526DFF, and Hex
#0007AF is the 20% darker color. If the color is saturated by 10%, you get
#1835EE. If the color is desaturated by 10%, the color
#263FD6 is obtained.