The hex color #494f5c is a dark color. The web-safe version is Hex
#336666. A complementary color is
#B6B0A3. The grayscale version is
#515151. A 20% lighter version of the original color is
#7C828F, and Hex
#161C29 is the 20% darker color. If the color is saturated by 10%, you get
#484F5D. If the color is desaturated by 10%, the color
#4A4F5B is obtained.