The hex color #3dff8d is a light color. The web-safe version is Hex
#33FF99. A complementary color is
#C20072. The grayscale version is
#989898. A 20% lighter version of the original color is
#70FFC0, and Hex
#0ACC5A is the 20% darker color. If the color is saturated by 10%, you get
#34FF8C. If the color is desaturated by 10%, the color
#46F58E is obtained.