The hex color #c5e40a is a light color. The web-safe version is Hex
#CCCC00. A complementary color is
#3A1BF5. The grayscale version is
#919191. A 20% lighter version of the original color is
#F8FF3D, and Hex
#92B100 is the 20% darker color. If the color is saturated by 10%, you get
#CAEC00. If the color is desaturated by 10%, the color
#C0DC18 is obtained.