The hex color #a75df4 is a light color. The web-safe version is Hex
#9966FF. A complementary color is
#58A20B. The grayscale version is
#A8A8A8. A 20% lighter version of the original color is
#DA90FF, and Hex
#742AC1 is the 20% darker color. If the color is saturated by 10%, you get
#A756FC. If the color is desaturated by 10%, the color
#A765EC is obtained.