The hex color #b3c9dd is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#4C3622. The grayscale version is
#C8C8C8. A 20% lighter version of the original color is
#E6FCFF, and Hex
#8096AA is the 20% darker color. If the color is saturated by 10%, you get
#B1C9DF. If the color is desaturated by 10%, the color
#B5C9DB is obtained.