The hex color #1a8e8f is a dark color. The web-safe version is Hex
#339999. A complementary color is
#E57170. The grayscale version is
#686868. A 20% lighter version of the original color is
#4DC1C2, and Hex
#005B5C is the 20% darker color. If the color is saturated by 10%, you get
#129293. If the color is desaturated by 10%, the color
#228A8B is obtained.