The hex color #1b0fab is a dark color. The web-safe version is Hex
#330099. A complementary color is
#E4F054. The grayscale version is
#474747. A 20% lighter version of the original color is
#4E42DE, and Hex
#000078 is the 20% darker color. If the color is saturated by 10%, you get
#1709B5. If the color is desaturated by 10%, the color
#1F15A1 is obtained.