The hex color #12f90a is a light color. The web-safe version is Hex
#00FF00. A complementary color is
#ED06F5. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#45FF3D, and Hex
#00C600 is the 20% darker color. If the color is saturated by 10%, you get
#0BFF02. If the color is desaturated by 10%, the color
#19E912 is obtained.