The hex color #4c7b8a is a dark color. The web-safe version is Hex
#336699. A complementary color is
#B38475. The grayscale version is
#707070. A 20% lighter version of the original color is
#7FAEBD, and Hex
#194857 is the 20% darker color. If the color is saturated by 10%, you get
#487C8D. If the color is desaturated by 10%, the color
#507A87 is obtained.