The hex color #3ad1b1 is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#C52E4E. The grayscale version is
#949494. A 20% lighter version of the original color is
#6DFFE4, and Hex
#079E7E is the 20% darker color. If the color is saturated by 10%, you get
#31D7B4. If the color is desaturated by 10%, the color
#43CBAE is obtained.