The hex color #c0ef1f is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#3F10E0. The grayscale version is
#9A9A9A. A 20% lighter version of the original color is
#F3FF52, and Hex
#8DBC00 is the 20% darker color. If the color is saturated by 10%, you get
#C4F813. If the color is desaturated by 10%, the color
#BCE72B is obtained.