The hex color #6df2b3 is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#920D4C. The grayscale version is
#B1B1B1. A 20% lighter version of the original color is
#A0FFE6, and Hex
#3ABF80 is the 20% darker color. If the color is saturated by 10%, you get
#66F9B3. If the color is desaturated by 10%, the color
#74EBB3 is obtained.