The hex color #09a9a8 is a dark color. The web-safe version is Hex
#009999. A complementary color is
#F65657. The grayscale version is
#737373. A 20% lighter version of the original color is
#3CDCDB, and Hex
#007675 is the 20% darker color. If the color is saturated by 10%, you get
#00AEAD. If the color is desaturated by 10%, the color
#14A4A3 is obtained.