The hex color #13a691 is a dark color. The web-safe version is Hex
#009999. A complementary color is
#EC596E. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#46D9C4, and Hex
#00735E is the 20% darker color. If the color is saturated by 10%, you get
#0AAC95. If the color is desaturated by 10%, the color
#1CA08E is obtained.