The hex color #64ad4c is a light color. The web-safe version is Hex
#669933. A complementary color is
#9B52B3. The grayscale version is
#747474. A 20% lighter version of the original color is
#97E07F, and Hex
#317A19 is the 20% darker color. If the color is saturated by 10%, you get
#62B348. If the color is desaturated by 10%, the color
#66A750 is obtained.