The hex color #c9f37e is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#360C81. The grayscale version is
#BEBEBE. A 20% lighter version of the original color is
#FCFFB1, and Hex
#96C04B is the 20% darker color. If the color is saturated by 10%, you get
#CAF878. If the color is desaturated by 10%, the color
#C8EE84 is obtained.