The hex color #00004d is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFFB2. The grayscale version is
#1A1A1A. A 20% lighter version of the original color is
#333380, and Hex
#00001A is the 20% darker color. If the color is saturated by 10%, you get
#000052. If the color is desaturated by 10%, the color
#030348 is obtained.