The hex color #c4fe7a is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#3B0185. The grayscale version is
#BFBFBF. A 20% lighter version of the original color is
#F7FFAD, and Hex
#91CB47 is the 20% darker color. If the color is saturated by 10%, you get
#C5FF73. If the color is desaturated by 10%, the color
#C3F881 is obtained.