The hex color #817f9c is a light color. The web-safe version is Hex
#996699. A complementary color is
#7E8063. The grayscale version is
#898989. A 20% lighter version of the original color is
#B4B2CF, and Hex
#4E4C69 is the 20% darker color. If the color is saturated by 10%, you get
#807E9E. If the color is desaturated by 10%, the color
#82809A is obtained.