The hex color #5a7fcc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A58033. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#8DB2FF, and Hex
#274C99 is the 20% darker color. If the color is saturated by 10%, you get
#557ED2. If the color is desaturated by 10%, the color
#5F80C6 is obtained.