The hex color #3ca80c is a dark color. The web-safe version is Hex
#339900. A complementary color is
#C357F3. The grayscale version is
#505050. A 20% lighter version of the original color is
#6FDB3F, and Hex
#097500 is the 20% darker color. If the color is saturated by 10%, you get
#3AB105. If the color is desaturated by 10%, the color
#3E9F13 is obtained.