The hex color #30C7B5 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#CF384A. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#63FAE8, and Hex
#009482 is the 20% darker color. If the color is saturated by 10%, you get
#27CDB9. If the color is desaturated by 10%, the color
#39C1B1 is obtained.