The hex color #00008a is a dark color. The web-safe version is Hex
#000099. A complementary color is
#FFFF75. The grayscale version is
#2E2E2E. A 20% lighter version of the original color is
#3333BD, and Hex
#000057 is the 20% darker color. If the color is saturated by 10%, you get
#000093. If the color is desaturated by 10%, the color
#050581 is obtained.