The hex color #220d5c is a dark color. The web-safe version is Hex
#330066. A complementary color is
#DDF2A3. The grayscale version is
#2E2E2E. A 20% lighter version of the original color is
#55408F, and Hex
#000029 is the 20% darker color. If the color is saturated by 10%, you get
#210A61. If the color is desaturated by 10%, the color
#231057 is obtained.