The hex color #c1ef3e is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#3E10C1. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#F4FF71, and Hex
#8EBC0B is the 20% darker color. If the color is saturated by 10%, you get
#C4F634. If the color is desaturated by 10%, the color
#BEE848 is obtained.