The hex color #5E8F8D is a light color. The web-safe version is Hex
#669999. A complementary color is
#A17072. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#91C2C0, and Hex
#2B5C5A is the 20% darker color. If the color is saturated by 10%, you get
#5B918F. If the color is desaturated by 10%, the color
#618D8C is obtained.