The hex color #0a19b6 is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#F5E649. The grayscale version is
#484848. A 20% lighter version of the original color is
#3D4CE9, and Hex
#000083 is the 20% darker color. If the color is saturated by 10%, you get
#0414C1. If the color is desaturated by 10%, the color
#101EAB is obtained.