The hex color #01523f is a dark color. The web-safe version is Hex
#006633. A complementary color is
#FEADC0. The grayscale version is
#313131. A 20% lighter version of the original color is
#348572, and Hex
#001F0C is the 20% darker color. If the color is saturated by 10%, you get
#005540. If the color is desaturated by 10%, the color
#064F3E is obtained.