The hex color #54a19b is a light color. The web-safe version is Hex
#669999. A complementary color is
#AB5E64. The grayscale version is
#858585. A 20% lighter version of the original color is
#87D4CE, and Hex
#216E68 is the 20% darker color. If the color is saturated by 10%, you get
#4FA49D. If the color is desaturated by 10%, the color
#599E99 is obtained.