The hex color #3D0147 is a dark color. The web-safe version is Hex
#330033. A complementary color is
#C2FEB8. The grayscale version is
#2C2C2C. A 20% lighter version of the original color is
#70347A, and Hex
#0A0014 is the 20% darker color. If the color is saturated by 10%, you get
#3F004A. If the color is desaturated by 10%, the color
#3B0544 is obtained.