The hex color #71f81c is a light color. The web-safe version is Hex
#66FF33. A complementary color is
#8E07E3. The grayscale version is
#828282. A 20% lighter version of the original color is
#A4FF4F, and Hex
#3EC500 is the 20% darker color. If the color is saturated by 10%, you get
#6FFF12. If the color is desaturated by 10%, the color
#73EC26 is obtained.