The hex color #78b8fa is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#874705. The grayscale version is
#B9B9B9. A 20% lighter version of the original color is
#ABEBFF, and Hex
#4585C7 is the 20% darker color. If the color is saturated by 10%, you get
#72B8FF. If the color is desaturated by 10%, the color
#7EB8F3 is obtained.