The hex color #1d13a7 is a dark color. The web-safe version is Hex
#330099. A complementary color is
#E2EC58. The grayscale version is
#484848. A 20% lighter version of the original color is
#5046DA, and Hex
#000074 is the 20% darker color. If the color is saturated by 10%, you get
#190EB1. If the color is desaturated by 10%, the color
#21189D is obtained.