The hex color #a75ea4 is a dark color. The web-safe version is Hex
#996699. A complementary color is
#58A15B. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#DA91D7, and Hex
#742B71 is the 20% darker color. If the color is saturated by 10%, you get
#AA59A6. If the color is desaturated by 10%, the color
#A463A2 is obtained.