The hex color #b8f40c is a light color. The web-safe version is Hex
#CCFF00. A complementary color is
#470BF3. The grayscale version is
#939393. A 20% lighter version of the original color is
#EBFF3F, and Hex
#85C100 is the 20% darker color. If the color is saturated by 10%, you get
#BCFE00. If the color is desaturated by 10%, the color
#B4EA19 is obtained.