The hex color #30b44f is a light color. The web-safe version is Hex
#33CC66. A complementary color is
#CF4BB0. The grayscale version is
#666666. A 20% lighter version of the original color is
#63E782, and Hex
#00811C is the 20% darker color. If the color is saturated by 10%, you get
#2BBC4D. If the color is desaturated by 10%, the color
#35AC51 is obtained.