The hex color #921cdd is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#6DE322. The grayscale version is
#848484. A 20% lighter version of the original color is
#C54FFF, and Hex
#5F00AA is the 20% darker color. If the color is saturated by 10%, you get
#9312E6. If the color is desaturated by 10%, the color
#9126D4 is obtained.