The hex color #b6f51c is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#490AE3. The grayscale version is
#989898. A 20% lighter version of the original color is
#E9FF4F, and Hex
#83C200 is the 20% darker color. If the color is saturated by 10%, you get
#B9FE10. If the color is desaturated by 10%, the color
#B3EC28 is obtained.