The hex color #78A8A8 is a light color. The web-safe version is Hex
#669999. A complementary color is
#875757. The grayscale version is
#989898. A 20% lighter version of the original color is
#ABDBDB, and Hex
#457575 is the 20% darker color. If the color is saturated by 10%, you get
#75AAAA. If the color is desaturated by 10%, the color
#7BA6A6 is obtained.