The hex color #81a38a is a light color. The web-safe version is Hex
#999999. A complementary color is
#7E5C75. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#B4D6BD, and Hex
#4E7057 is the 20% darker color. If the color is saturated by 10%, you get
#80A589. If the color is desaturated by 10%, the color
#82A18B is obtained.