The hex color #30c69f is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#CF3960. The grayscale version is
#878787. A 20% lighter version of the original color is
#63F9D2, and Hex
#00936C is the 20% darker color. If the color is saturated by 10%, you get
#27CCA1. If the color is desaturated by 10%, the color
#39C09D is obtained.