The hex color #4c8889 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#B37776. The grayscale version is
#747474. A 20% lighter version of the original color is
#7FBBBC, and Hex
#195556 is the 20% darker color. If the color is saturated by 10%, you get
#488A8B. If the color is desaturated by 10%, the color
#508687 is obtained.