The hex color #40eb3c is a light color. The web-safe version is Hex
#33FF33. A complementary color is
#BF14C3. The grayscale version is
#787878. A 20% lighter version of the original color is
#73FF6F, and Hex
#0DB809 is the 20% darker color. If the color is saturated by 10%, you get
#3AF736. If the color is desaturated by 10%, the color
#46DF42 is obtained.