The hex color #77abbe is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#885441. The grayscale version is
#A0A0A0. A 20% lighter version of the original color is
#AADEF1, and Hex
#44788B is the 20% darker color. If the color is saturated by 10%, you get
#73ACC1. If the color is desaturated by 10%, the color
#7BAABB is obtained.