The hex color #e66be0 is a light color. The web-safe version is Hex
#FF66CC. A complementary color is
#19941F. The grayscale version is
#BBBBBB. A 20% lighter version of the original color is
#FF9EFF, and Hex
#B338AD is the 20% darker color. If the color is saturated by 10%, you get
#EA63E4. If the color is desaturated by 10%, the color
#E273DC is obtained.