The hex color #4df1e4 is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#B20E1B. The grayscale version is
#B6B6B6. A 20% lighter version of the original color is
#80FFFF, and Hex
#1ABEB1 is the 20% darker color. If the color is saturated by 10%, you get
#43F7E9. If the color is desaturated by 10%, the color
#58EBDF is obtained.