The hex color #9ee4e4 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#611B1B. The grayscale version is
#CDCDCD. A 20% lighter version of the original color is
#D1FFFF, and Hex
#6BB1B1 is the 20% darker color. If the color is saturated by 10%, you get
#99E6E6. If the color is desaturated by 10%, the color
#A3E2E2 is obtained.