The hex color #c3d74e is a light color. The web-safe version is Hex
#CCCC66. A complementary color is
#3C28B1. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#F6FF81, and Hex
#90A41B is the 20% darker color. If the color is saturated by 10%, you get
#C6DC46. If the color is desaturated by 10%, the color
#C0D256 is obtained.