The hex color #56748c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#A98B73. The grayscale version is
#727272. A 20% lighter version of the original color is
#89A7BF, and Hex
#234159 is the 20% darker color. If the color is saturated by 10%, you get
#53748F. If the color is desaturated by 10%, the color
#597489 is obtained.