The hex color #a604e7 is a dark color. The web-safe version is Hex
#9900FF. A complementary color is
#59FB18. The grayscale version is
#868686. A 20% lighter version of the original color is
#D937FF, and Hex
#7300B4 is the 20% darker color. If the color is saturated by 10%, you get
#A900F1. If the color is desaturated by 10%, the color
#A311DD is obtained.