The hex color #5f719c is a dark color. The web-safe version is Hex
#666699. A complementary color is
#A08E63. The grayscale version is
#797979. A 20% lighter version of the original color is
#92A4CF, and Hex
#2C3E69 is the 20% darker color. If the color is saturated by 10%, you get
#5C709F. If the color is desaturated by 10%, the color
#627299 is obtained.