The hex color #4c5e5a is a dark color. The web-safe version is Hex
#336666. A complementary color is
#B3A1A5. The grayscale version is
#575757. A 20% lighter version of the original color is
#7F918D, and Hex
#192B27 is the 20% darker color. If the color is saturated by 10%, you get
#4B5F5A. If the color is desaturated by 10%, the color
#4D5D5A is obtained.