The hex color #04b59d is a dark color. The web-safe version is Hex
#00CC99. A complementary color is
#FB4A62. The grayscale version is
#727272. A 20% lighter version of the original color is
#37E8D0, and Hex
#00826A is the 20% darker color. If the color is saturated by 10%, you get
#00BCA1. If the color is desaturated by 10%, the color
#0FAE99 is obtained.