The hex color #09a49d is a dark color. The web-safe version is Hex
#009999. A complementary color is
#F65B62. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#3CD7D0, and Hex
#00716A is the 20% darker color. If the color is saturated by 10%, you get
#00A9A2. If the color is desaturated by 10%, the color
#139F98 is obtained.