The hex color #0c454b is a dark color. The web-safe version is Hex
#003333. A complementary color is
#F3BAB4. The grayscale version is
#343434. A 20% lighter version of the original color is
#3F787E, and Hex
#001218 is the 20% darker color. If the color is saturated by 10%, you get
#08474D. If the color is desaturated by 10%, the color
#104349 is obtained.