The hex color #00519d is a dark color. The web-safe version is Hex
#006699. A complementary color is
#FFAE62. The grayscale version is
#4F4F4F. A 20% lighter version of the original color is
#3384D0, and Hex
#001E6A is the 20% darker color. If the color is saturated by 10%, you get
#0051A5. If the color is desaturated by 10%, the color
#085195 is obtained.