The hex color #6df1ed is a light color. The web-safe version is Hex
#66FFFF. A complementary color is
#920E12. The grayscale version is
#C4C4C4. A 20% lighter version of the original color is
#A0FFFF, and Hex
#3ABEBA is the 20% darker color. If the color is saturated by 10%, you get
#64F6F1. If the color is desaturated by 10%, the color
#76ECE9 is obtained.