The hex color #1efb9f is a light color. The web-safe version is Hex
#33FF99. A complementary color is
#E10460. The grayscale version is
#939393. A 20% lighter version of the original color is
#51FFD2, and Hex
#00C86C is the 20% darker color. If the color is saturated by 10%, you get
#12FFA0. If the color is desaturated by 10%, the color
#2AF19E is obtained.