The hex color #64524c is a dark color. The web-safe version is Hex
#666633. A complementary color is
#9BADB3. The grayscale version is
#565656. A 20% lighter version of the original color is
#97857F, and Hex
#311F19 is the 20% darker color. If the color is saturated by 10%, you get
#65524B. If the color is desaturated by 10%, the color
#63524D is obtained.