The hex color #B7E5E3 is a light color. The web-safe version is Hex
#CCCCCC. A complementary color is
#481A1C. The grayscale version is
#D5D5D5. A 20% lighter version of the original color is
#EAFFFF, and Hex
#84B2B0 is the 20% darker color. If the color is saturated by 10%, you get
#B4E7E4. If the color is desaturated by 10%, the color
#BAE3E2 is obtained.