The hex color #73f4ef is a light color. The web-safe version is Hex
#66FFFF. A complementary color is
#8C0B10. The grayscale version is
#C7C7C7. A 20% lighter version of the original color is
#A6FFFF, and Hex
#40C1BC is the 20% darker color. If the color is saturated by 10%, you get
#6BF8F3. If the color is desaturated by 10%, the color
#7BF0EB is obtained.