The hex color #04199c is a dark color. The web-safe version is Hex
#000099. A complementary color is
#FBE663. The grayscale version is
#3E3E3E. A 20% lighter version of the original color is
#374CCF, and Hex
#000069 is the 20% darker color. If the color is saturated by 10%, you get
#0015A5. If the color is desaturated by 10%, the color
#0A1D93 is obtained.