The hex color #3f159b is a dark color. The web-safe version is Hex
#330099. A complementary color is
#C0EA64. The grayscale version is
#505050. A 20% lighter version of the original color is
#7248CE, and Hex
#0C0068 is the 20% darker color. If the color is saturated by 10%, you get
#3D0FA3. If the color is desaturated by 10%, the color
#411B93 is obtained.