The hex color #b5b6d8 is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#4A4927. The grayscale version is
#C1C1C1. A 20% lighter version of the original color is
#E8E9FF, and Hex
#8283A5 is the 20% darker color. If the color is saturated by 10%, you get
#B4B5DA. If the color is desaturated by 10%, the color
#B6B7D6 is obtained.