The hex color #4CC19B is a light color. The web-safe version is Hex
#33CC99. A complementary color is
#B33E64. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#7FF4CE, and Hex
#198E68 is the 20% darker color. If the color is saturated by 10%, you get
#45C69C. If the color is desaturated by 10%, the color
#53BC9A is obtained.