The hex color #63455f is a dark color. The web-safe version is Hex
#663366. A complementary color is
#9CBAA0. The grayscale version is
#585858. A 20% lighter version of the original color is
#967892, and Hex
#30122C is the 20% darker color. If the color is saturated by 10%, you get
#644360. If the color is desaturated by 10%, the color
#62475E is obtained.