The hex color #4b738f is a dark color. The web-safe version is Hex
#336699. A complementary color is
#B48C70. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#7EA6C2, and Hex
#18405C is the 20% darker color. If the color is saturated by 10%, you get
#477392. If the color is desaturated by 10%, the color
#4F738C is obtained.