The hex color #52688c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#AD9773. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#859BBF, and Hex
#1F3559 is the 20% darker color. If the color is saturated by 10%, you get
#4F688F. If the color is desaturated by 10%, the color
#556889 is obtained.