The hex color #b4bdbe is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#4B4241. The grayscale version is
#BABABA. A 20% lighter version of the original color is
#E7F0F1, and Hex
#818A8B is the 20% darker color. If the color is saturated by 10%, you get
#B3BDBE. If the color is desaturated by 10%, the color
#B5BDBE is obtained.