The hex color #000450 is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFBAF. The grayscale version is
#1C1C1C. A 20% lighter version of the original color is
#333783, and Hex
#00001D is the 20% darker color. If the color is saturated by 10%, you get
#000255. If the color is desaturated by 10%, the color
#03064B is obtained.