The hex color #a543a4 is a dark color. The web-safe version is Hex
#993399. A complementary color is
#5ABC5B. The grayscale version is
#848484. A 20% lighter version of the original color is
#D876D7, and Hex
#721071 is the 20% darker color. If the color is saturated by 10%, you get
#A83DA7. If the color is desaturated by 10%, the color
#A24AA1 is obtained.