The hex color #565dba is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A9A245. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#8990ED, and Hex
#232A87 is the 20% darker color. If the color is saturated by 10%, you get
#525AC0. If the color is desaturated by 10%, the color
#5A60B4 is obtained.