The hex color #4df1ed is a light color. The web-safe version is Hex
#66FFFF. A complementary color is
#B20E12. The grayscale version is
#B9B9B9. A 20% lighter version of the original color is
#80FFFF, and Hex
#1ABEBA is the 20% darker color. If the color is saturated by 10%, you get
#42F7F2. If the color is desaturated by 10%, the color
#58EBE8 is obtained.