The hex color #01b51a is a dark color. The web-safe version is Hex
#00CC33. A complementary color is
#FE4AE5. The grayscale version is
#454545. A 20% lighter version of the original color is
#34E84D, and Hex
#008200 is the 20% darker color. If the color is saturated by 10%, you get
#00C016. If the color is desaturated by 10%, the color
#08AA1E is obtained.