The hex color #753e4c is a dark color. The web-safe version is Hex
#663333. A complementary color is
#8AC1B3. The grayscale version is
#555555. A 20% lighter version of the original color is
#A8717F, and Hex
#420B19 is the 20% darker color. If the color is saturated by 10%, you get
#783C4B. If the color is desaturated by 10%, the color
#72404D is obtained.