The hex color #25b39f is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#DA4C60. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#58E6D2, and Hex
#00806C is the 20% darker color. If the color is saturated by 10%, you get
#1CB8A2. If the color is desaturated by 10%, the color
#2EAE9C is obtained.