The hex color #a40aed is a dark color. The web-safe version is Hex
#9900FF. A complementary color is
#5BF512. The grayscale version is
#898989. A 20% lighter version of the original color is
#D73DFF, and Hex
#7100BA is the 20% darker color. If the color is saturated by 10%, you get
#A700F7. If the color is desaturated by 10%, the color
#A117E3 is obtained.