The hex color #53cbbc is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#AC3443. The grayscale version is
#9E9E9E. A 20% lighter version of the original color is
#86FEEF, and Hex
#209889 is the 20% darker color. If the color is saturated by 10%, you get
#4CD0BF. If the color is desaturated by 10%, the color
#5BC7B9 is obtained.