The hex color #1c13aa is a dark color. The web-safe version is Hex
#330099. A complementary color is
#E3EC55. The grayscale version is
#484848. A 20% lighter version of the original color is
#4F46DD, and Hex
#000077 is the 20% darker color. If the color is saturated by 10%, you get
#180EB4. If the color is desaturated by 10%, the color
#2018A0 is obtained.