The hex color #0000e3 is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#FFFF1C. The grayscale version is
#4C4C4C. A 20% lighter version of the original color is
#3333FF, and Hex
#0000B0 is the 20% darker color. If the color is saturated by 10%, you get
#0000F2. If the color is desaturated by 10%, the color
#0808D4 is obtained.