The hex color #a0e9d3 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#5F162C. The grayscale version is
#C9C9C9. A 20% lighter version of the original color is
#D3FFFF, and Hex
#6DB6A0 is the 20% darker color. If the color is saturated by 10%, you get
#9CECD4. If the color is desaturated by 10%, the color
#A4E6D2 is obtained.