The hex color #917bcc is a light color. The web-safe version is Hex
#9966CC. A complementary color is
#6E8433. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#C4AEFF, and Hex
#5E4899 is the 20% darker color. If the color is saturated by 10%, you get
#9078D1. If the color is desaturated by 10%, the color
#927EC7 is obtained.