The hex color #81cf9f is a light color. The web-safe version is Hex
#99CC99. A complementary color is
#7E3060. The grayscale version is
#A5A5A5. A 20% lighter version of the original color is
#B4FFD2, and Hex
#4E9C6C is the 20% darker color. If the color is saturated by 10%, you get
#7DD39E. If the color is desaturated by 10%, the color
#85CBA0 is obtained.