The hex color #c9fb5f is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#3604A0. The grayscale version is
#B6B6B6. A 20% lighter version of the original color is
#FCFF92, and Hex
#96C82C is the 20% darker color. If the color is saturated by 10%, you get
#CBFF56. If the color is desaturated by 10%, the color
#C7F468 is obtained.