The hex color #54668c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#AB9973. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#8799BF, and Hex
#213359 is the 20% darker color. If the color is saturated by 10%, you get
#52658F. If the color is desaturated by 10%, the color
#566789 is obtained.