The hex color #b9eee1 is a light color. The web-safe version is Hex
#CCFFCC. A complementary color is
#46111E. The grayscale version is
#D8D8D8. A 20% lighter version of the original color is
#ECFFFF, and Hex
#86BBAE is the 20% darker color. If the color is saturated by 10%, you get
#B6F0E2. If the color is desaturated by 10%, the color
#BCECE0 is obtained.