The hex color #09a3a0 is a dark color. The web-safe version is Hex
#009999. A complementary color is
#F65C5F. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#3CD6D3, and Hex
#00706D is the 20% darker color. If the color is saturated by 10%, you get
#00A8A5. If the color is desaturated by 10%, the color
#139E9B is obtained.