The hex color #0a483c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#F5B7C3. The grayscale version is
#2F2F2F. A 20% lighter version of the original color is
#3D7B6F, and Hex
#001509 is the 20% darker color. If the color is saturated by 10%, you get
#064A3D. If the color is desaturated by 10%, the color
#0E463B is obtained.