The hex color #78f11b is a light color. The web-safe version is Hex
#66FF33. A complementary color is
#870EE4. The grayscale version is
#818181. A 20% lighter version of the original color is
#ABFF4E, and Hex
#45BE00 is the 20% darker color. If the color is saturated by 10%, you get
#77FC11. If the color is desaturated by 10%, the color
#79E625 is obtained.