The hex color #40a7af is a light color. The web-safe version is Hex
#339999. A complementary color is
#BF5850. The grayscale version is
#878787. A 20% lighter version of the original color is
#73DAE2, and Hex
#0D747C is the 20% darker color. If the color is saturated by 10%, you get
#39AAB3. If the color is desaturated by 10%, the color
#47A4AB is obtained.