The hex color #83fb65 is a light color. The web-safe version is Hex
#99FF66. A complementary color is
#7C049A. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#B6FF98, and Hex
#50C832 is the 20% darker color. If the color is saturated by 10%, you get
#80FF5F. If the color is desaturated by 10%, the color
#86F26B is obtained.