The hex color #1eef6f is a light color. The web-safe version is Hex
#33FF66. A complementary color is
#E11090. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#51FFA2, and Hex
#00BC3C is the 20% darker color. If the color is saturated by 10%, you get
#14FA6D. If the color is desaturated by 10%, the color
#28E471 is obtained.