The hex color #1c898f is a dark color. The web-safe version is Hex
#339999. A complementary color is
#E37670. The grayscale version is
#676767. A 20% lighter version of the original color is
#4FBCC2, and Hex
#00565C is the 20% darker color. If the color is saturated by 10%, you get
#158C93. If the color is desaturated by 10%, the color
#23868B is obtained.