The hex color #25767a is a dark color. The web-safe version is Hex
#336666. A complementary color is
#DA8985. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#58A9AD, and Hex
#004347 is the 20% darker color. If the color is saturated by 10%, you get
#1F797D. If the color is desaturated by 10%, the color
#2B7377 is obtained.