The hex color #23e3dd is a light color. The web-safe version is Hex
#33CCCC. A complementary color is
#DC1C22. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#56FFFF, and Hex
#00B0AA is the 20% darker color. If the color is saturated by 10%, you get
#16EAE3. If the color is desaturated by 10%, the color
#30DCD7 is obtained.