The hex color #5f7fcc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A08033. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#92B2FF, and Hex
#2C4C99 is the 20% darker color. If the color is saturated by 10%, you get
#5A7ED2. If the color is desaturated by 10%, the color
#6481C6 is obtained.