The hex color #30976c is a dark color. The web-safe version is Hex
#339966. A complementary color is
#CF6893. The grayscale version is
#666666. A 20% lighter version of the original color is
#63CA9F, and Hex
#006439 is the 20% darker color. If the color is saturated by 10%, you get
#2B9C6D. If the color is desaturated by 10%, the color
#35926B is obtained.