The hex color #09cf39 is a light color. The web-safe version is Hex
#00CC33. A complementary color is
#F630C6. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#3CFF6C, and Hex
#009C06 is the 20% darker color. If the color is saturated by 10%, you get
#01DB36. If the color is desaturated by 10%, the color
#11C33C is obtained.