The hex color #3a11a6 is a dark color. The web-safe version is Hex
#330099. A complementary color is
#C5EE59. The grayscale version is
#505050. A 20% lighter version of the original color is
#6D44D9, and Hex
#070073 is the 20% darker color. If the color is saturated by 10%, you get
#380BAF. If the color is desaturated by 10%, the color
#3C179D is obtained.