The hex color #37b49f is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C84B60. The grayscale version is
#838383. A 20% lighter version of the original color is
#6AE7D2, and Hex
#04816C is the 20% darker color. If the color is saturated by 10%, you get
#2FB9A2. If the color is desaturated by 10%, the color
#3FAF9C is obtained.