The hex color #b6d4d8 is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#492B27. The grayscale version is
#CBCBCB. A 20% lighter version of the original color is
#E9FFFF, and Hex
#83A1A5 is the 20% darker color. If the color is saturated by 10%, you get
#B4D5D9. If the color is desaturated by 10%, the color
#B8D3D7 is obtained.