The hex color #0003db is a dark color. The web-safe version is Hex
#0000CC. A complementary color is
#FFFC24. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#3336FF, and Hex
#0000A8 is the 20% darker color. If the color is saturated by 10%, you get
#0000EA. If the color is desaturated by 10%, the color
#070ACD is obtained.