The hex color #3ece4d is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#C131B2. The grayscale version is
#737373. A 20% lighter version of the original color is
#71FF80, and Hex
#0B9B1A is the 20% darker color. If the color is saturated by 10%, you get
#39D749. If the color is desaturated by 10%, the color
#43C551 is obtained.