The hex color #000455 is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFBAA. The grayscale version is
#1E1E1E. A 20% lighter version of the original color is
#333788, and Hex
#000022 is the 20% darker color. If the color is saturated by 10%, you get
#00015B. If the color is desaturated by 10%, the color
#03074F is obtained.