The hex color #5FA3A8 is a light color. The web-safe version is Hex
#669999. A complementary color is
#A05C57. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#92D6DB, and Hex
#2C7075 is the 20% darker color. If the color is saturated by 10%, you get
#5AA5AB. If the color is desaturated by 10%, the color
#64A1A5 is obtained.