The hex color #1aa7b5 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E5584A. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#4DDAE8, and Hex
#007482 is the 20% darker color. If the color is saturated by 10%, you get
#10ABBB. If the color is desaturated by 10%, the color
#24A3AF is obtained.