The hex color #6bcc44 is a light color. The web-safe version is Hex
#66CC33. A complementary color is
#9433BB. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#9EFF77, and Hex
#389911 is the 20% darker color. If the color is saturated by 10%, you get
#69D43E. If the color is desaturated by 10%, the color
#6DC44A is obtained.