The hex color #020d3c is a dark color. The web-safe version is Hex
#000033. A complementary color is
#FDF2C3. The grayscale version is
#191919. A 20% lighter version of the original color is
#35406F, and Hex
#000009 is the 20% darker color. If the color is saturated by 10%, you get
#000C40. If the color is desaturated by 10%, the color
#040E39 is obtained.