The hex color #0a11a0 is a dark color. The web-safe version is Hex
#000099. A complementary color is
#F5EE5F. The grayscale version is
#3E3E3E. A 20% lighter version of the original color is
#3D44D3, and Hex
#00006D is the 20% darker color. If the color is saturated by 10%, you get
#050CAA. If the color is desaturated by 10%, the color
#0F1696 is obtained.