The hex color #528b7c is a dark color. The web-safe version is Hex
#669966. A complementary color is
#AD7483. The grayscale version is
#737373. A 20% lighter version of the original color is
#85BEAF, and Hex
#1F5849 is the 20% darker color. If the color is saturated by 10%, you get
#4F8D7D. If the color is desaturated by 10%, the color
#55897B is obtained.