The hex color #a40ea5 is a dark color. The web-safe version is Hex
#990099. A complementary color is
#5BF15A. The grayscale version is
#727272. A 20% lighter version of the original color is
#D741D8, and Hex
#710072 is the 20% darker color. If the color is saturated by 10%, you get
#A904AA. If the color is desaturated by 10%, the color
#9F18A0 is obtained.