The hex color #b840cc is a dark color. The web-safe version is Hex
#CC33CC. A complementary color is
#47BF33. The grayscale version is
#979797. A 20% lighter version of the original color is
#EB73FF, and Hex
#850D99 is the 20% darker color. If the color is saturated by 10%, you get
#BB37D1. If the color is desaturated by 10%, the color
#B549C7 is obtained.