The hex color #30fd64 is a light color. The web-safe version is Hex
#33FF66. A complementary color is
#CF029B. The grayscale version is
#868686. A 20% lighter version of the original color is
#63FF97, and Hex
#00CA31 is the 20% darker color. If the color is saturated by 10%, you get
#27FF61. If the color is desaturated by 10%, the color
#39F167 is obtained.