The hex color #000349 is a dark color. The web-safe version is Hex
#000033. A complementary color is
#FFFCB6. The grayscale version is
#191919. A 20% lighter version of the original color is
#33367C, and Hex
#000016 is the 20% darker color. If the color is saturated by 10%, you get
#00014E. If the color is desaturated by 10%, the color
#030544 is obtained.