The hex color #1d25a6 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#E2DA59. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#5058D9, and Hex
#000073 is the 20% darker color. If the color is saturated by 10%, you get
#1821AF. If the color is desaturated by 10%, the color
#22299D is obtained.