The hex color #00b51f is a dark color. The web-safe version is Hex
#00CC33. A complementary color is
#FF4AE0. The grayscale version is
#474747. A 20% lighter version of the original color is
#33E852, and Hex
#008200 is the 20% darker color. If the color is saturated by 10%, you get
#00C01B. If the color is desaturated by 10%, the color
#07AA23 is obtained.