The hex color #a40f9a is a dark color. The web-safe version is Hex
#990099. A complementary color is
#5BF065. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#D742CD, and Hex
#710067 is the 20% darker color. If the color is saturated by 10%, you get
#A9059E. If the color is desaturated by 10%, the color
#9F1996 is obtained.