The hex color #25b69f is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#DA4960. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#58E9D2, and Hex
#00836C is the 20% darker color. If the color is saturated by 10%, you get
#1CBCA2. If the color is desaturated by 10%, the color
#2EB09C is obtained.