The hex color #0d3cb2 is a dark color. The web-safe version is Hex
#003399. A complementary color is
#F2C34D. The grayscale version is
#545454. A 20% lighter version of the original color is
#406FE5, and Hex
#00097F is the 20% darker color. If the color is saturated by 10%, you get
#063ABB. If the color is desaturated by 10%, the color
#143EA9 is obtained.