The hex color #223BA3 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#DDC45C. The grayscale version is
#555555. A 20% lighter version of the original color is
#556ED6, and Hex
#000870 is the 20% darker color. If the color is saturated by 10%, you get
#1D38AB. If the color is desaturated by 10%, the color
#273E9B is obtained.