The hex color #cf91ed is a light color. The web-safe version is Hex
#CC99FF. A complementary color is
#306E12. The grayscale version is
#C4C4C4. A 20% lighter version of the original color is
#FFC4FF, and Hex
#9C5EBA is the 20% darker color. If the color is saturated by 10%, you get
#D08CF1. If the color is desaturated by 10%, the color
#CE96E9 is obtained.