The hex color #4c6ac3 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#B3953C. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#7F9DF6, and Hex
#193790 is the 20% darker color. If the color is saturated by 10%, you get
#4768CA. If the color is desaturated by 10%, the color
#516CBC is obtained.