The hex color #1b0a9f is a dark color. The web-safe version is Hex
#330099. A complementary color is
#E4F560. The grayscale version is
#414141. A 20% lighter version of the original color is
#4E3DD2, and Hex
#00006C is the 20% darker color. If the color is saturated by 10%, you get
#1704A8. If the color is desaturated by 10%, the color
#1F1096 is obtained.