The hex color #30a91e is a dark color. The web-safe version is Hex
#339933. A complementary color is
#CF56E1. The grayscale version is
#525252. A 20% lighter version of the original color is
#63DC51, and Hex
#007600 is the 20% darker color. If the color is saturated by 10%, you get
#2DB219. If the color is desaturated by 10%, the color
#33A023 is obtained.