The hex color #00384c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#FFC7B3. The grayscale version is
#2C2C2C. A 20% lighter version of the original color is
#336B7F, and Hex
#000519 is the 20% darker color. If the color is saturated by 10%, you get
#00394F. If the color is desaturated by 10%, the color
#043749 is obtained.