The hex color #1f724d is a dark color. The web-safe version is Hex
#336666. A complementary color is
#E08DB2. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#52A580, and Hex
#003F1A is the 20% darker color. If the color is saturated by 10%, you get
#1B764D. If the color is desaturated by 10%, the color
#236E4D is obtained.