The hex color #5E5FB3 is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#A1A04C. The grayscale version is
#7B7B7B. A 20% lighter version of the original color is
#9192E6, and Hex
#2B2C80 is the 20% darker color. If the color is saturated by 10%, you get
#5B5CB9. If the color is desaturated by 10%, the color
#6162AD is obtained.