The hex color #143fd9 is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#EBC026. The grayscale version is
#646464. A 20% lighter version of the original color is
#4772FF, and Hex
#000CA6 is the 20% darker color. If the color is saturated by 10%, you get
#0C3BE5. If the color is desaturated by 10%, the color
#1C43CD is obtained.