The hex color #3cf57e is a light color. The web-safe version is Hex
#33FF66. A complementary color is
#C30A81. The grayscale version is
#909090. A 20% lighter version of the original color is
#6FFFB1, and Hex
#09C24B is the 20% darker color. If the color is saturated by 10%, you get
#34FF7C. If the color is desaturated by 10%, the color
#44EB80 is obtained.