The hex color #68d13f is a light color. The web-safe version is Hex
#66CC33. A complementary color is
#972EC0. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#9BFF72, and Hex
#359E0C is the 20% darker color. If the color is saturated by 10%, you get
#66D939. If the color is desaturated by 10%, the color
#6AC945 is obtained.