The hex color #3ECE18 is a light color. The web-safe version is Hex
#33CC00. A complementary color is
#C131E7. The grayscale version is
#616161. A 20% lighter version of the original color is
#71FF4B, and Hex
#0B9B00 is the 20% darker color. If the color is saturated by 10%, you get
#3AD911. If the color is desaturated by 10%, the color
#42C31F is obtained.