The hex color #c4f56f is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#3B0A90. The grayscale version is
#B8B8B8. A 20% lighter version of the original color is
#F7FFA2, and Hex
#91C23C is the 20% darker color. If the color is saturated by 10%, you get
#C5FB68. If the color is desaturated by 10%, the color
#C3EF76 is obtained.