The hex color #3ad1c8 is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#C52E37. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#6DFFFB, and Hex
#079E95 is the 20% darker color. If the color is saturated by 10%, you get
#30D6CC. If the color is desaturated by 10%, the color
#44CCC4 is obtained.