The hex color #5e917b is a dark color. The web-safe version is Hex
#669966. A complementary color is
#A16E84. The grayscale version is
#797979. A 20% lighter version of the original color is
#91C4AE, and Hex
#2B5E48 is the 20% darker color. If the color is saturated by 10%, you get
#5B937B. If the color is desaturated by 10%, the color
#618F7B is obtained.