The hex color #c4e75f is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#3B18A0. The grayscale version is
#AEAEAE. A 20% lighter version of the original color is
#F7FF92, and Hex
#91B42C is the 20% darker color. If the color is saturated by 10%, you get
#C6ED57. If the color is desaturated by 10%, the color
#C2E167 is obtained.