The hex color #0a56a0 is a dark color. The web-safe version is Hex
#006699. A complementary color is
#F5A95F. The grayscale version is
#555555. A 20% lighter version of the original color is
#3D89D3, and Hex
#00236D is the 20% darker color. If the color is saturated by 10%, you get
#0256A7. If the color is desaturated by 10%, the color
#125699 is obtained.