The hex color #0004b4 is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#FFFB4B. The grayscale version is
#3D3D3D. A 20% lighter version of the original color is
#3337E7, and Hex
#000081 is the 20% darker color. If the color is saturated by 10%, you get
#0000C0. If the color is desaturated by 10%, the color
#060AA8 is obtained.