The hex color #a74bd0 is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#58B42F. The grayscale version is
#969696. A 20% lighter version of the original color is
#DA7EFF, and Hex
#74189D is the 20% darker color. If the color is saturated by 10%, you get
#A944D6. If the color is desaturated by 10%, the color
#A553CA is obtained.