The hex color #428a2c is a dark color. The web-safe version is Hex
#339933. A complementary color is
#BD75D3. The grayscale version is
#535353. A 20% lighter version of the original color is
#75BD5F, and Hex
#0F5700 is the 20% darker color. If the color is saturated by 10%, you get
#409028. If the color is desaturated by 10%, the color
#448430 is obtained.