The hex color #54ac9c is a light color. The web-safe version is Hex
#669999. A complementary color is
#AB5363. The grayscale version is
#898989. A 20% lighter version of the original color is
#87DFCF, and Hex
#217969 is the 20% darker color. If the color is saturated by 10%, you get
#4FAF9E. If the color is desaturated by 10%, the color
#59A99A is obtained.