The hex color #5ec1b5 is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#A13E4A. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#91F4E8, and Hex
#2B8E82 is the 20% darker color. If the color is saturated by 10%, you get
#58C5B8. If the color is desaturated by 10%, the color
#64BDB3 is obtained.