The hex color #38d31c is a light color. The web-safe version is Hex
#33CC33. A complementary color is
#C72CE3. The grayscale version is
#626262. A 20% lighter version of the original color is
#6BFF4F, and Hex
#05A000 is the 20% darker color. If the color is saturated by 10%, you get
#34DE15. If the color is desaturated by 10%, the color
#3CC823 is obtained.