The hex color #99b4fb is a light color. The web-safe version is Hex
#99CCFF. A complementary color is
#664B04. The grayscale version is
#C3C3C3. A 20% lighter version of the original color is
#CCE7FF, and Hex
#6681C8 is the 20% darker color. If the color is saturated by 10%, you get
#95B3FF. If the color is desaturated by 10%, the color
#9DB5F5 is obtained.