The hex color #c7f82e is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#3807D1. The grayscale version is
#A4A4A4. A 20% lighter version of the original color is
#FAFF61, and Hex
#94C500 is the 20% darker color. If the color is saturated by 10%, you get
#CAFF22. If the color is desaturated by 10%, the color
#C4F03A is obtained.