The hex color #40C7B5 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#BF384A. The grayscale version is
#949494. A 20% lighter version of the original color is
#73FAE8, and Hex
#0D9482 is the 20% darker color. If the color is saturated by 10%, you get
#38CCB8. If the color is desaturated by 10%, the color
#48C2B2 is obtained.