The hex color #00047f is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFB80. The grayscale version is
#2C2C2C. A 20% lighter version of the original color is
#3337B2, and Hex
#00004C is the 20% darker color. If the color is saturated by 10%, you get
#000087. If the color is desaturated by 10%, the color
#040877 is obtained.