The hex color #2146d3 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#DEB92C. The grayscale version is
#696969. A 20% lighter version of the original color is
#5479FF, and Hex
#0013A0 is the 20% darker color. If the color is saturated by 10%, you get
#1A43DE. If the color is desaturated by 10%, the color
#2849C8 is obtained.