The hex color #c9e10f is a light color. The web-safe version is Hex
#CCCC00. A complementary color is
#361EF0. The grayscale version is
#939393. A 20% lighter version of the original color is
#FCFF42, and Hex
#96AE00 is the 20% darker color. If the color is saturated by 10%, you get
#CEE902. If the color is desaturated by 10%, the color
#C4D91C is obtained.